In the early 2000s, more than 2,500 elephants which is reduced to 200 tuskless elephants.
What is the percentage of Tuskless elephants?Whereas the usual level of tusklessness in elephant residents is somewhere between 3 percent and 4 percent, on the report of a Ugandan report, a 1989 survey of Queen Elizabeth National Park discloses tusklessness in the elephant population to be between 9 percent and 25 percent. This find proposes the mutation for tusklessness may kill male elephants, per the New York Times. The team deliberated that 18.5 percent of female elephants did not have tusks before the war began. After the war, 33 percent of 91 female elephants born were naturally tuskless, per Nature.
So we can conclude that In well-protected elephant natives, tusklessness can be as low as 2 percent. Today, half of Gorongosa's females are tuskless.
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Answer to this question
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The correct pathway of water through plants is from the soil to the root hairs, to the root cortex cells, to the xylem, to the leaf mesophyll cells, to the air spaces in leaf and finally to the stomata.
In these parts water moves in the form of;
Root hairs - liquid stateRoot cortex cells - liquid stateXylem - liquid stateLeaf mesophyll cells - liquid stateAir spaces in leaf - gaseous stateStomata - gaseous state.How does water travel trough plants?The process of water carrying nutrient to all parts of the plant is called transpiration and involves the movement of water from the soil to the root hairs in liquid state, to the root cortex still in liquid form to the xylem, liquid to the leaf mesophyll and then evaporates to the air spaces in gaseous form to the stomata.
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large, multinucleated cells that can dissolve the bony matrix are termed a. osteocytes b. osteoblasts c. osteoprogenitor cells d. chondrocytes e. osteoclasts
Large, multinucleated cells that can dissolve the bony matrix are termed, E. osteoclasts.
Large multinucleated cells known as osteoclasts are responsible for resorbing bone. With the help of acids and hydrolytic enzymes, osteoclasts destroy the matrix and osteoid. In contrast to the other bone cells, osteoclasts are phagocytic and generated from monocytes.
Large bone cells called osteoclasts can have up to 50 nuclei. By releasing lysosomal enzymes and acids that disintegrate the bony matrix, they degrade the bone structure. These minerals, which are released from bones into the blood, aid in controlling calcium levels in bodily fluids. Osteo-progenitor cells give rise to osteoblasts in the body.
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which of the following best describes the effect of insulin binding to the receptor on the osteoblast cells? responses insulin binding ultimately increases pancreatic secretion of additional insulin. insulin binding ultimately increases pancreatic secretion of additional insulin. insulin binding blocks the release of osteocalcin from the osteoblasts. insulin binding blocks the release of osteocalcin from the osteoblasts. insulin binding inhibits the expression of espesp. insulin binding inhibits the expression of e s p . insulin binding increases the phph of the extracellular matrix.
Insulin binding ultimately increases pancreatic secretion of additional insulin.
Insulin binding to the insulin receptor on osteoblasts stimulates a signalling pathway, causing the release of the chemical OPG by the osteoblasts, which then binds to the nearby osteoclasts. The osteoclasts react by releasing protons (H+), which lowers the pH outside the cell. Osteocalcin, a protein released by osteoblasts in an inactive state, is activated by this low pH.
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Is it possible for producers to be on any other level of an energy pyramid? Explain your reasoning.
Answer: Energy can be passed up to the rest of the pyramid from plants. Producers are living things that are able to make their own food. Most of them use the sun's light to make their food.
Explanation:
Now if you are all the way at the top, what's at the bottom of this pyramid? In order for it to stand, it has to have a strong base. So at the very bottom, we have the living things that can hold themselves up on their own with nothing beneath them. These are plants that are able to make their own energy from sun, gas, and water. They do not need much help from other living things. Energy can be passed up to the rest of the pyramid from plants.
Producers are living things that are able to make their own food. Most of them use the sun's light to make their food. They use most of the food they make to grow and stay alive, then store the rest in their bodies. Have you ever pulled a carrot up out of the ground? The orange part is the plant's stored energy. This is a great way to grow and still keep some energy for later. That is, of course, until a hungry rabbit hops along.
what volume of mating mix (mixture of donor and recipient) will you spread plate on to a luria agar dap plate?
200 microliters volume of mating mix spread plate on to a luria agar dap plate
What does a Luria test entail?In order to complete the Luria's Test (also known as the "fist-edge-palm" test or Luria Sequence), the patient must duplicate three hand motions made by a medical professional. The Frontal Assessment Framework (FAB) is a set of tests that includes Luria's test.
What symptoms denote frontal release?A certain region of the brain, usually the frontal lobes, has an inhibitory effect that causes the reflex to decrease as the brain ages. When disease processes disrupt these inhibitory pathways, the response is "liberated" from inhibition and can then be triggered again. The term "frontal release sign" was created for this reason.
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why is epinephrine considered a hormone when it is produced by the adrenal medulla and a neurotransmitter when secreted by a neuron
Epinephrine is considered a hormone when produced by the adrenal medulla because it's secreted into the bloodstream and a NT when secreted by a neuron because it's secreted into the brain.
Epinephrine is both a neurotransmitter and a hormone, however it acts specially as a hormone. Epinephrine, also called adrenaline, performs an important position in your frame's combat-or-flight response. It is also used as a medication to deal with many life-threatening situations.
Epinephrine injection is used for emergency treatment of extreme hypersensitive reactions (together with anaphylaxis) to insect bites or stings, drugs, foods, or other substances. It's also used to treat anaphylaxis resulting from unknown materials or caused through exercising.
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Identify the characteristic of a garden pea flowers that make it easy to control their mating
Mating of garden pea flowers can be easily controlled as the male and female reproductive parts, also called stamen and stigma respectively, are within the same flower. The peas are small, they grow easily and produce a lot of off-springs.
What are other characteristics of garden peas?
The following are the characteristics of garden pea plant:
The color of the seed is either green or yellow.The shape of the seeds is round or wrinkled.The color of the pod is green or yellow.The shape of the pod is constricted or inflated.The flowers are positioned terminal or axial.The flowers are purple of white.Mendel chose garden pea for his experiments because of these easily identifiable traits.
The mating of garden peas, therefore, is easily controllable as the stamen and stigma are within the same flower.
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a bacterium is in a capillary tube that contains a gradient of both attractant (glucose) and a repellent (hydrogen peroxide). where will the bacteria concentrate?
The bacteria concentrate will be somewhere in the middle.
What are the role of bacteria in life on earth?Bacteria are a group of organisms that do not have a cell nucleus membrane. These organisms belong to prokaryotes and they are very small in size and have an important role in life on earth. Some groups of bacteria are known to cause infection and disease, and others can provide benefits in the fields of food, medicine, and industry.Attractants can also be referred to as attention grabber, which are chemicals that can cause insects to move closer to the source of these substances.Hydrogen peroxide may be a chemical compound with the formula H₂O₂. In its immaculate shape, it may be a clear, pale blue fluid, somewhat thicker than water. Hydrogen peroxide is the only peroxide. H₂O₂ is utilized as an oxidizing specialist, fading operator, and clean.Learn about bacteria here: brainly.com/question/8008968
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what is one virulence factor that differentiates staphylococcus aureus from other species of staphylococci?
Coagulase is the virulence factor that differentiates S.aureus from other staphylococcus species.
What is staphylococcus aureus?
It is a gram +ve bacteria that causes a wide range of diseases. Staphylococcus aureus is often spread by contaminated hands. An effective barrier against this infection would be the skin and mucus membrane. If these physical barriers are breached, then they may cause serious infections. S. aureus is the leading reason for skin and soft tissues infections. Example: abscesses, cellulitis, etc.
Most Staph infections aren’t usually serious, but they can cause serious bloodstream infections (bacteremia), pneumonia, bone and joint infections etc.
Hence, S. aureus is distinguished from other species of staphylococcus if it is coagulase positive. Which means the bacteria can cause blood coagulation, giving it its pathogenic nature.
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3. If the vinegar solution was a nutrient and the cubes were unicellular organisms,
which cube would be more able to "feed" its volume?
The cube smallest would be more able to "feed" its volume.
What exactly is a unicellular organism?Multicellular creatures utilize a variety of cells to carry out their many duties, in contrast to unicellular organisms, which are composed of just one cell.
A single cell is referred to be a unicellular organism if it is capable of carrying out all the fundamental tasks required for existence. Amoeba, Paramecium, and other species with only one cell are a few examples.
In unicellular organisms, all essential bodily processes, such as metabolism, excretion, and reproduction, are carried out by a single cell. Eukaryotes or prokaryotes are both classifications for unicellular creatures. Archaea, bacteria, single-celled fungus, and single-celled protists are a few examples of unicellular creatures.
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milk and ear wax multiple choice question. a) are not secretions. b) are secreted from modified sweat glands. c) are secreted from modified sebaceous glands. d) are in the blood.
Answer: b
Explanation: because it’s right
Milk and ear wax "are secreted from modified sweat glands".
The ceruminous glands, whose were remodeled merocrine sweat glands, secrete ear wax, while the mammary glands, which were remodeled apocrine sweat glands, secrete milk.
A particular kind of gland that can be found in the skin, ear, breast, and eyelid. Apocrine glands inside the ear aid in the formation of earwax, whereas those in the breast produce fat droplets with breast milk. Sweat glands have been located in apocrine glands on the skin and eyelid.
Therefore, the correct answer will be option (c).
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Choose one environmental law and describe its major components. Speculate on how life would be in the present day if this legislation did not exist.
The term “environment” refers to the relationship that occurs between people, other living things, plants, microorganisms, and property, as well as the water, air, and land that make up that relationship.
What are the major components of environmental lawThe term “environment” refers to everything that surrounds a person, including both natural and cultural elements.
The goal of the law is to control, restrict, or outright forbid the use of chemical substances and mixtures that pose an excessive risk to human health from being imported, manufactured, processed, sold, distributed, used, and disposed of.
Therefore, Two key elements of environmental protection are the theoretical framework and the practical application procedure.
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On the ventral surface of the brain, you can observe the optic nerves and chiasma, the pituitary gland, and the mammillary bodies. These externally visible structures form the floor of the __________.
On the ventral surface of the brain, you can observe the optic nerves and chiasma, the pituitary gland, and the mammillary bodies. These externally visible structures form the floor of the diencephalon.
Diencephalon is one component that is located in the back of the forebrain, which component includes the thalamus, hypothalamus, and additionally the epithalamus. The diencephalon itself is one in every of the fundamental parts of our mind. Its place is pretty hidden and its length is pretty small, the precise place of this diencephalon is among the hemispheres of the mind and simply above the brainstem.
Despite its small length, the diencephalon performs an crucial function in mind fitness and frame feature due to the fact the diencephalon is the a part of the mind that sends alerts and cooperates with our bodies.
Some of the things managed via way of means of the diencephalon, they may be senses (hearing, seeing, smelling, feeling), frame movements, motor functions, homeostasis, contact notion and so on.
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What are some of the changes that have occurred in the past 50 years that have led us to now take 80 to 90 million metric tons of fish out of the sea every year?
Answer: We created more effective and superior fishing methods. In addition, our population has increased, meaning there are more people to eat fish.
Over the past 50 years, the production of fish and seafood has doubled worldwide. In addition to the fact that the world's population has more than doubled during this time, the average person now consumes about twice as much seafood as they did fifty years ago. Fish stocks all across the world are under more strain as a result of this. Since the 1980s, the proportion of fish populations that are overexploited globally—meaning that humans harvest them more quickly than they can reproduce to maintain population levels—has more than doubled, making the current levels of wild fishing unsustainable.
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Two parents have a child. Both parents carry a copy of the Huntingtons allele.
What is the percent chance that the child does not inherit Huntingtons?
Both parents carrying a copy of the Huntingtons allele means that the percent chance that the child does not inherit Huntingtons is 25% and is denoted as option A.
What is Allele?This is referred to as the variant form of a gene and can be homozygous or heterozygous.
We were told that both parents carry a copy of the Huntingtons allele which means that they are heterozygous for the trait and can be expressed as seen below:
Hh × Hh = HH Hh Hh hh
This therefore means that the chance of them producing a child with Huntington’s disease is 3 in 4, or 75% while the chance of the child not inheriting it will be 100% - 75%b = 25%.
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what is the predicted size of the corresponding mature mrna in base pairs (bp), excluding the 5' cap and 3' poly-a tail?
Predicted size of the corresponding mature mRNA in base pairs (bp), excluding the 5' cap and 3' poly-a tail is 295 bp.
1000 base long mRNA, this means that its double-stranded version will be 500 bp long. Messenger RNA or mRNA is a type of single-stranded RNA involved in protein synthesis.
mRNA is type of RNA that is important for protein production. In human cells, mRNA uses the information in genes to create a copy for making proteins. Many mRNA vaccines helps to protect humans from various disease like recently scientist have developed covid vaccine using mRNA .
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research has demonstrated that when siblings have similar personalities, this similarity is largely the result of:
Research has demonstrated that siblings have similar personalities, and this similarity is largely the result of: genetics.
What is genetics and how is it important?The study of genes, genetic variation, and heredity in organisms is termed as genetics. It is an important branch in biology because heredity is vital to evolution of organism.
DNA is responsible for building and maintaining the human structure. Genes are segments of DNA which gives physical characteristics that make you unique and every body has a complete instruction manual that tells your cells how to behave. In humans, genes vary in size that ranges from a few hundred DNA bases to more than 2 million bases.
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hich statement describes the environmental impact of developing countries? individuals in these countries have to degrade the environment to meet basic needs. these countries leave the largest ecological footprint. individuals in these countries benefit from efficient food distribution systems. these countries rely on technology to improve
The statement which describes the environmental impact of developing countries accurately is : Individuals in these countries have to degrade the environment to meet basic needs.
Pollution is one of several environmental issues confronting the globe today. In developing countries, the effects of pollution are more severe, causing millions of people each year to suffer from poor health, pass away, or become disabled. Developed nations have the means and tools to fight pollution.
The high levels of pollution in developing countries are caused by a combination of reasons including low income levels, high costs of improvement, political problems that hinder effective governance, and market failures.
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which of the following is a trait shared by mammals and reptiles that is not shared by the other groups of chordates
A trait shared by mammals and reptiles that are not shared by the other groups of chordates (C). an amnion
Embryos of both humans and animals are initially entirely enclosed by a membrane called the amnion. The amniotic sac, which provides a safe environment for the developing fetus, fills with amniotic fluid as the amnion develops. The amnion, chorion, yolk sac, and allantois all serve as protective coverings for the embryo. In monotremes, reptiles, and birds, the protective sac is encased in a shell. In placental mammals and marsupials, it is contained in a uterus.
Amnion is only present in mammals, birds, and reptiles. These groups' embryos are located in the thinnest layer. It isn't present in all chordates. A notochord, a dorsal nerve cord, and paired gill pouches are features shared by all chordates.
The complete question is:
Which of the following is a trait shared by mammals and reptiles that is not shared by the other groups of chordates?
A. hair
B. mammary glands
C. an amnion
D. legs
E. lungs
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clay would get angry very quickly when he was a teenager. now he is in his fifties and it takes a lot to make him angry. what has changed? please choose the correct answer from the following choices, and then select the submit answer button. answer choices clay's levels of the hormone testosterone have decreased. clay's levels of the hormone testosterone have increased. clay's levels of the hormone melatonin have increased. clay's levels of the hormone melatonin have decreased.
Clay would get angry very quickly when he was a teenager but now in his fifties, it takes a lot to make him angry. This is primarily because Clay's levels of the hormone testosterone have decreased. So the correct option is a.
Studies have shown that higher testosterone levels and lower cortisol levels are associated with higher levels of anger. And as the age of a person (here a male) increases then the serum testosterone levels decline with age.
Age-related testosterone decline is due to the waning of both testicular and hypothalamic-pituitary functions. Although it is a slow decline. More than 33% of men over 45 may have lower-than-normal testosterone levels.
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in conditioning birds and rats, you find that it is easier to condition birds with vision-relevant stimuli than with taste-relevant stimuli, and it is easier to condition rats with taste-relevant stimuli than with vision-relevant stimuli. these results are true because
In the vision relevant stimuli, the result are true due to Law of effect.
In physiology, a stimulus is a detectable exchange in the bodily or chemical shape of an organism's inner or external surroundings. The capability of an organism or organ to detect external stimuli, so that the right reaction may be made, is known as sensitivity.
Stimuli is a detectable trade within the inner or outside surroundings. That which influences or causes a brief increase of physiological activity or response inside the entire organism or in any of its parts.
Detection of stimuli is crucial for adaptation, or adjusting to changes in the surroundings. The human frame is ready with response mechanisms that allow us to alter to changes inside the surroundings in order for survival.
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Which of the following is a product of respiration resulting from the breaking of carbon-carbon bonds?
a glucose
b. oxygen
c. carbon dioxide
d. all of the above
Please select the best answer from the choices provided
Answer:
Carbon dioxide is produced during respiration from the breaking of carbon-carbon bonds.
Explanation:
Cellular respiration takes glucose and water and turns them into carbon dioxide and water in the formula:
C6H12O6 + 6O2 = 6CO2 + 6H2O + Energy
When the carbon bonds are broke, carbon dioxide is produced.
What molecule in cells provides the immediate energy needed for biochemical reactions?.
Molecule in cells provides the immediate energy needed for biochemical reactions is ATP (Adenosine Triphosphate).
Understanding ATPATP is soluble in water because it has phosphatehydride bonds. The phosphatehydride bond of ATP is very unstable, easy to break but easy to reconnect.
This is why ATP can immediately release large amounts of energy when it is needed very quickly. This allows us to move the body quickly without any pause between the mind moving and the movement itself.
ATP formationATP is formed from the glycolysis process that takes place in the mitochondria. Mitochondria are cell organelles that have an internal membrane where glycolysis takes place.
Glycolysis is the reaction of breaking down glucose from food into pyruvic acid and ATP. The pyruvic acid is further broken down to produce ATP and tricarboxylic acid.
ATP is produced according to the amount of food that enters the body, and can be used up when used to move. When you exercise, the amount of ATP used by the body is more than when you only play with your cellphone.
This is why we feel tired after exercise, because the ATP in the body must be replenished with food.
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what is the most significant factor affecting environments and biodiversity. describe what role do humans have in protecting or changing this issue?
The most significant factor affecting environments and biodiversity is the way that humans have altered natural habitats to make room for farmland or to obtain natural resources. As humans, it is our role to protect the environment.
To obtain our food, water, fuel, medicines, building materials, and many other necessities, humans must interact with the environment. Through the use of science and technology, we have improved our ability to exploit the environment for selfish purposes, but we have also harmed and polluted it. We have a moral duty to protect the environment for the benefit of present and future generations. Men are polluting the environment, whether they are conscious of it or not. Deforestation, water and air pollution, and greenhouse gas-induced climate change are a few of these. You can promote biodiversity and protect the environment by reducing, reusing, and recycling. Cut back on the waste you generate, volunteer to help with community clean-ups, Educate people, improve water efficiency, Think sustainably when shopping, be cautious, using light bulbs with a long lifespan. Plant a tree, etc.
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in humans, right handed is dominant to left handed. cross 2 heterozygous right handed parents. what is the genotypic ratio?
1 : 2 : 1 is the genotypic ratio. The development of hand preference most likely occurs together with the separation of the right and left sides of the body.
More precisely, variations between the right and left hemispheres of the brain seem to be connected to handedness. 10% of children born to right-hand parents will be left-hand, on average. At 18 to 22% and 27%, respectively, the likelihood that a child will be left-handed increases if one or both parents are left-hand. In fact, one of the stranger explanations for the rarity of left-handedness holds that a genetic mutation in the ancient past moved the human brain's language center from the right hemisphere to the left, essentially making right-handedness more prevalent.
The complete question is:
In humans, right handed is dominant to left handed. Cross 2 heterozygous right handed parents. What is the genotypic ratio?
4 : 0
1 : 1
1 : 2 : 1
3 : 1
9 : 3 : 3 : 1
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What are the Independent, Dependent, and Controlled Variables?
I am observing the different stages of cell division by observing the tip of an onion root under a microscope and the time spent in each cycle.
During its completed cell division cycle, the onion root cell will have spent 68% in Interphase, 16% in Prophase, 6% in Metaphase, 4% in Anaphase, 4% in Telophase, and 2% in Cytokinesis.
What are the independent, dependent, and controlled variables of the onion roots cell division?
For more info my lab report is attached
When observing onion roots cell division may be defined as the time for division being the independent variable, the number of cells being the dependent variable and the controlled variable being the room temperature.
What is the independent variable?The independent variable is the variable that doesn't change along the experimental procedure while the dependent variable is modified by the conditions. The controlled variable is the same for all treatments.
Therefore, with this data, we can see that the independent variable is not modified while the dependent variable change in function of the independent variable.
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Blood is called tissue give reason
Blood is both a tissue and a fluid. It is a tissue because it is a collection of similarly specialized cells that serve particular functions. These cells are suspended in a liquid matrix (plasma), which makes the blood a fluid.
Explanation:Blood is considered a type of connective tissue because it connects the body systems, transports oxygen and nutrients to all the parts of the body, and removes waste products. Blood has an extra-cellular matrix called plasma, with red blood cells, white blood cells, and platelets floating in it. Blood is a specialized form of fluid connective tissue. Blood is regarded as a connective tissue because as the blood is circulated throughout the body due to the pumping action of the heart, it carries different materials and gases from one part of the body to another. Hence, it connects different tissues and organs of the body and thus, is called connective tissue. It is considered a connective tissue because it consists of blood cells surrounded by a nonliving fluid matrix called blood plasma. It is the most atypical connective tissue: the fibres of blood are soluble protein molecules that become visible during blood clotting.
List 2 for each fluid: Specify if each fluid is a liquid or gas and explain why. 1. Home 2. school/work 3. outdoors
The types of fluid for each place include the following listed below:
1. Home - Liquid soap, oil
2. School/work - Water, Oxygen.
3. Outdoors - Oxygen, water
What is a Fluid?This is referred to as a substance which could be in the form of liquid or gas and is capable of continually flowing when it is subjected to shear stress or external force.
There are various types of fluids which have their individual properties which is based on their structure and atoms such as liquid soap which is used in the home for household chores such as washing and cleaning of materials or surfaces.
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Answer:
Home: Cooking Oil is used to cook a variety of vegetables/ foods, Water is a basic need to live and we drink it everywhere including our homes.
School: Liquid soap is used for clean windows, floors and sometimes ourselves, Oxygen is also a basic need just like water to live but for breathing.
Outdoors: Engine Oil is a liquid and used to repair cars and Gas is a fuel used to run cars and vehicles
a lung specimen from a pneumonia patient contains gram-negative bacilli. laboratory test results on the bacteria show they are nonmotile coliforms with a capsule. which pathogen is the likely cause of the pneumonia? a) escherichia coli b) enterobacter c) hafnia d) klebsiella e) serratia
It may take some time to recover from pneumonia, which has a likely cause in the Serratia pathogen. Some people recover their health and resume their regular routines in one to two weeks.
What brings about Serratia bacteria?In any damp area where phosphorus-containing compounds or fatty substances build up, the bacteria will flourish. These compounds can be found in toilets, in soap residues left behind in bathing places, and in pet water bowls.
Is the bacterium Serratia marcescens an pathogenic one?A Gram-negative bacterium known as Serratia marcescens infects a variety of invertebrate and vertebrate hosts, as well as plants, to cause disease (Grimont and Grimont, 1978). It is an opportunistic human infection, and during the past three decades, nosocomial S has steadily increased.
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Which option is not a scientific explanation for the origin of life on Earth?
Life originated on Earth's surface in warm, shallow oceans.
Cyanobacteria colonies were brought to Earth in asteroids or comets.
Life originated in hydrothermal vents deep in the oceans.
Organic molecules were brought to Earth in asteroids or comets.
A
C
D
On the basis of the scientific theories for the origin of life on Earth, the explanation which is not correct is that the colonies of cyanobacteria were brought to Earth in asteroids and comets.
What are the different scientific theories on origin of life?According to the deep-sea vent idea, life may have started at submerged hydrothermal vents that spew out essential components for life, like carbon and hydrogen.
In the deepest parts of the ocean's ocean floor, are hydrothermal vents. These vents release fluid that has been heated to a high temperature by the Earth's core as it rises through the crust and is then discharged at the vents gathering dissolved gases and minerals, including carbon and hydrogen. Then, these molecules might have been concentrated in their rocky crevices, serving as mineral catalysts for important reactions. These vents still support thriving ecosystems today because they are rich in chemical and thermal energy.
The meteorites would've been capable of transporting the molecules to Earth after the creation of nucleobases in space, later serving as the foundation for all genetic basis of life.
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