Explanation:
I don't know I just really need points at this point and need answers to a test so I'm sorry for this
Which best describes neurons? like all eukaryotic cells, neurons do not have the ability to regulate what substances go in and out of the cell. like all eukaryotic cells, neurons have a nucleus that controls the activities of the cell. unlike other eukaryotic cells, neurons cannot produce energy that can be used to carry out the life-sustaining processes of the cell. unlike other eukaryotic cells, neurons have a membrane that surrounds the cell.
like all eukaryotic cells, neurons have a nucleus that controls the activities of the cell is the correct option.
What are neurons?The basic building blocks of the brain and nervous system are neurons. They are the cells that receive sensory information from the outside world, convey motor directions to our muscles, and transform and relay electrical signals at each stage along the way.What is the function of neuron?The neuron, a specialized cell created to send information to other nerve cells, muscle cells, or gland cells, is the basic functional unit of the brain. Axons, dendrites, and a cell body make up the majority of neurons.Mention the types of neurons:
Sensory neuronsMotor neuronsInterneuronsTo learn more about neurons visit:
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The clean catch urine specimen of a child with dysuria, frequency, and fever has a colony count between 50,000 and 100,000 of E. coli. What is the treatment for this child
The treatment of a child with dysuria who has a colony count between 50,000 and 100,000 of E. coli involves the use of specific antibiotics for this type of bacterial infection.
What is an antibiotic?An antibiotic is any medication drug capable of reducing stopin bacteria growth and therefore thus being able to remove this type of infections.
Antibiotic treatment for dysuria cases may include doxycycline and rifamycin (treatment of E coli).
In conclusion, The treatment of a child with dysuria who has a colony count between 50,000 and 100,000 of E. coli involves the use of specific antibiotics for this type of bacterial infection.
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Which is useful for high-throughput sequencing, but is not part of sanger dna sequencing?
Roche/454 pyrosequencing , useful for high throughput sequencing techniques. This method utilizes pyrosequncing which allows for sequencing as the sequence read out can be achieved at the same time as the sequence is extended.
High- throughput screening is the use of automated equipment to rapidly test thousand to millions of samples for the biological activities at the model organism, cellular, pathway or molecular level.Many DNA samples can be sequenced simultaneously.
Sanger DNA sequencing also known as chain termination. This method is used only for the single DNA fragment at a time. Amplicon sequencing with NGS is efficient and cost effective . It is required a DNA polymerase , nucleotide , dideoxynucleotides and buffer.
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Some individuals inherit an xx chromosome pattern but are exposed prenatally to drugs that are converted to male hormones once in the body. these individuals are likely to?
Individuals inherit an xx chromosome pattern but are exposed prenatally to drugs that are converted to male hormones once in the body have masculinized genitalia and behave in more 'masculine ways'.
Person normally has one pair of sex chromosomes in each cell. The Y chromosome is present in males, who have one X and one Y chromosome, while females have two X chromosomes. Identifying genes on each chromosome is an active area of genetic research.
In general Gender schema theory proposes that children learn schemes related to gender from their interactions with other children and adults, as well as from TV program and films. Such schema or stereotypes have the function of organizing and structuring other information that is presented to children.
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A cross among monohybrids is a ____ cross.
Answer:
A cross among monohybrids is called a monohybrid cross
The ophthalmologic term describing a fibrous growth of conjunctival tissue that extends onto the cornea is termed:_______
The ophthalmologic term describing a fibrous growth of conjunctival tissue that extends onto the cornea is termed pterygium.
A pterygium is a growth of the conjunctiva or mucous membrane that covers the white part of your eye over the cornea.
The cornea is the clear front covering of the eye. This benign or noncancerous growth is often shaped like a wedge causing a disturbance of vision.
A pterygium, also known as surfer's eye. It can be only treated by a surgery. It is preferable to remove the pterygium before it grows across the cornea, otherwise, it may scar the cornea and cause permanent vision problems.
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You have a vial that contains 1000 bacteria. after boiling for 3 minutes, there are only 500 living bacteria remaining in the sample. what is the decimal reduction time for boiling this organism?
The decimal reduction time for boiling this organism is 5.4 minutes.
The number of minutes exposure to a specified temperature required to reduce viable bacteria by 90% is known as the D-value (decimal reduction time). Thirdly, the concept of decimal reduction time (DRT or D value) is connected to bacterial heat resistance. DRT is the amount of time, in minutes, That it takes for 90% of a population of bacteria to be destroyed at a particular temperature.In terms of usefulness, this measurement is crucial for determining how well bacteria are inactivated by heat under various settings, particularly when preparing and preserving food.Total bacteria = 1000
500 bacteria die in 3 minutes
1000 bacteria will die in 6 minutes
90% of 1000 = 900
900 bacteria will die in = 900 X 3/500
= 27/5
= 5.4 minutes
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Structure b is a _____. transport protein solute phospholipid solvent water molecule
The correct option is (a) transport protein.
A protein that moves other elements within an organism is referred to as a transport protein. All living organisms require transport proteins for growth and survival. Transport proteins come in a variety of varieties. Transport proteins that participate in assisted diffusion include channel proteins, gated channel proteins, and carrier proteins.
To carry molecules across the plasma membrane, transport proteins work in both active and passive transport. The plasma membrane has two main groups of transport proteins, and each one facilitates the passage of water-loving molecules.
Therefore, The correct option is (a) transport protein.
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What other behavioral traits can be discerned from the anatomy? behavioral traits can include: diet, locomotion (not just bipedal), possible communication abilities, etcetera.
behavioral traits that can be discerned from anatomy are diet, locomotion (not just bipedal) and possible communication skills.
What is anatomical features?The analysis of similarities of anatomical, physiological and morphological features is the basis for the concepts of homology and analogy. The first concept concerns biological organisms that have such similarities and a common ancestor.
With this information, we can conclude that Anatomy is the study of the physical structure and parts of organisms. Examples of anatomy include body parts such as muscles, heart, brain, bladder, and kidneys
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What feature of a phospholipid's anatomy, when incorporated into the lipid bilayer of a cell's plasma membrane, prevent ions from freely diffusing into or out of a cell?
Anatomically, phospholipids are amphipathic molecules. This feature when incorporated into the lipid bilayer of a cell's plasma membrane prevents ions from freely diffusing into or out of a cell.
An amphipathic molecule contains both a hydrophilic (water-loving) as well as a hydrophobic (water-hating) region. A single phospholipid molecule contains a phosphate group on one end which is called the “head,” and two side-by-side chains of fatty acids that form the lipid “tails”.
Phospholipids are able to form cell membranes due to the fact that the phosphate group head is hydrophilic while the fatty acid tails are hydrophobic.
The lipid bilayer thus, acts as a barrier to the passage of molecules and ions into and out of the cell.
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Shortly after gastrulation, the body and organs of the embryo begin to form. This process is called?
Shortly after gastrulation, the body and organs of the embryo begin to form. This process is called embryogenesis.
The process by which an embryo transforms into a fetus is known as embryogenesis. The three germ layers that eventually give rise to the various organs in the animal body are formed as a result of gastrulation.Embryogenesis is the name of this process. As a result of differentiation, organs emerge from the germ layers. The process of creating and growing an embryo from a zygote (zygotic embryogenesis) or a somatic cell is known as embryogenesis (somatic embryogenesis). An incredibly well-organized series of cell division, expansion, and differentiation takes place during embryo development.
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Particulates can:_____.
a. cause acid rain
b. reduce photosynthesis
c. cause lung and heart disease
d. none of these
Particulates can penetrate in respiratory system so the correct answer is c. cause lung and heart disease.
PM stands for particulate matter, often known as particle pollution, which is the word used to describe an airborne mixture of solid and liquid droplets. Dust, grime, soot, and smoke are examples of particulate that are large enough or dark enough to be visible to the unaided eye. Some can only be seen with an electron microscope because they are so tiny.
The lungs can be reached by particles in the PM2.5 size range that can penetrate far into the respiratory system. Shortness of breath, coughing, sneezing, runny nose, eye, nose, throat, and lung irritation are just a few short-term health impacts that can result from exposure to tiny particles.
Additionally, exposure to particulate can impair lung function and make illnesses like asthma and heart disease worse.
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How does the greenhouse effect influence the climate on earth? choose the best possible answer.
The greenhouse effect influences climate by increasing the global temperature.
What is greenhouse effect?The greenhouse effects are effects due to the presence of greenhouse gases in the atmosphere.
The greenhouse gases form a layer of gas in the atmosphere and prevent reflected solar radiation from escaping back into space. They, therefore, warm up the atmosphere by increasing the thermal energy.
As the concentration of the greenhouse gases in the atmosphere increases, so also is the amount of reflected solar radiation that is trapped in the atmosphere.
Therefore, an increase in greenhouse gas concentration increases the global temperature. Temperature influences other climatic factors such as precipitation.
Thus, the greenhouse effects influence climate by causing a rise in global temperature.
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________ are the simplest lipids but they may be a part of or a source of many complex lipids.
Fatty acids are the simplest lipids but they may be a part of or a source of many complex lipids.
What is fatty acid?The building blocks of fat in our bodies and the food we eat are called fatty acids. The body converts lipids into fatty acids during digestion so that they can be taken into the circulation. A molecule known as a triglyceride is created when three fatty acid molecules are linked together.Carboxylic acids joined to alkyl chains are fatty acids. In mammalian systems, the typical fatty acids are unbranched and may contain one or more double bonds. They are cis double bonds. Fatty acids with branched chains and those with aliphatic ring structures are well known.The number of carbon atoms and carbon-carbon double bonds in the chain are used to designate fatty acids.A unique class of fatty acids are called essential fatty acids. They are referred to as such since humans cannot make them on our own and must obtain them from diet. Linoleic acid and alpha-linolenic acid (ALA), which are found in plant oils, are examples of important fatty acids.Learn more about fatty acid here:
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The antifungals known as polyenes interact with ________, a lipid unique to fungus membranes.
The antifungals known as polyenes interact with ergosterol, a lipid unique to fungus membranes.
What is fungus membrane?The fungus's homeostatic regulation depends on the sterol-, sphingolipid-, and glycerophospholipid-rich fungal membrane. Azoles impair the normal stability of the fungal membrane by inhibiting the enzyme lanosterol-14-demethylase (Erg11 or CYP51), which converts lanosterol to ergosterol. Unfortunately, the widespread use of these drugs has resulted in the development of resistance mechanisms, including the activation of efflux pumps, the development of biofilms, and the overexpression or active site mutation of CYP51. The creation of novel inhibitors able to overcome the resistance was made possible by the crystal structures of mutant CYP51 enzymes from Saccharomyces cerevisiae and Candida albicans in association with azoles.
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Which types of animals must have access to environmental enrichment, as mandated by the animal welfare regulations?
Animals which have access to environmental enrichment are Non Human primates as mandated by Animal Welfare Regulations.
Environmental enrichment refers to the modificational changes to upgrade the level of social, physical and mental stimulation to the environment.
Environmental enrichment for laboratory animals is for improving animal well-being. It is used as a research tool to understand the effects of experience on the brain like in Ruminants.It comprises different boundaries of housing animals.It is achieved to make environment more complex and provide cognitive challengesLearn more about Non-Human primates here, https://brainly.com/question/17254525
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Animals which have access to environmental enrichment are Non Human primates as mandated by Animal Welfare Regulations.
Environmental enrichment refers to the modificational changes to upgrade the level of social, physical and mental stimulation to the environment.
Environmental enrichment for laboratory animals is for improving animal well-being.
It is used as a research tool to understand the effects of experience on the brain like in Ruminants which are Non Human primates.
It comprises different boundaries of housing animals.
It is achieved to make environment more complex and provide cognitive challenges.
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Organism x is a brand new species to science. it lives deep in caves and thrives by absorbing carbon from other organisms. this organism is likely a?
Organism x is a brand new species to science. it lives deep in caves and thrives by absorbing carbon from other organisms. this organism is likely a chemoheterotroph.
What about chemoheterotroph?Chemoheterotrophs are microorganisms that primarily rely on organic chemicals for their carbon and energy needs.A living thing that gets its energy from inorganic molecules and gets most of its carbon from carbon dioxide.The subtype of lithotrophic bacteria, commonly referred to as "rock eaters" or "stone eaters," is an illustration of chemoheterotrophic bacteria. On the ocean floor and in underground water sources, where there exist both organic molecules and mineral food sources, these bacteria can be discovered.Chemoheterotrophs are creatures that obtain both their carbon and energy from organic materials. Chemoheterotrophs are unable to produce the organic building blocks they need, thus they must eat them. Most organic substances, including sugars, are a source of energy.Chemoautotrophs convert carbon dioxide into organic molecules using inorganic energy sources. Carbon dioxide cannot be used by chemoheterotrophs to create their own organic molecules. Rather, proteins, lipids, carbohydrates, and sulfur are where they get their carbon from.
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Look at the ocean system below.
plankton - shrimp - salmon - humans
What will most likely happen if the plankton population decreases in this
ocean system?
• A. Humans will have more available food.
• B. The atmosphere will have more oxygen.
• C. More shrimp will move into the area.
D. It will be more difficult for salmon to find food.
Answer:
D. It will be more difficult for salmon to find food.
Explanation:
Due to the plankton population decreasing, the shrimp would have less food. When the shrimp have less food to eat, their population would also decrease.
Since the shrimp population decreased, the salmon would have less shrimp to eat, making it more difficult for them to find food.
When one thing offsets the food chain, it begins to collapse. The smallest change could have a major consequence.
3 reasons why gaseous exchange is essential
Hey there!
So gaseous exchange is the process of swapping one gas for another in the alveoli of the lungs.
3 reasons why it is important is because it gives the body the ability to eliminate carbon dioxide, replenish oxygen, and it is required for survival.
If this was to brief, please see further down for maybe more information.
How does gas exchange happen in lungs?Simple passive diffusion.
As they attempt to reach equilibrium between the partial pressure of each gas in the alveolus (a tiny air sac) and the partial pressure of each gas dissolved in pulmonary capillary blood entering the lung, O2 and CO2 readily diffuse through cellular membranes. As a result, almost equal amounts of oxygen and CO2 diffuse from the lung to the blood.
How can the process of gas exchange be explained?All mammals, birds, reptiles, and amphibians have hemoglobin in their blood. Oxygen replaces the carbon dioxide bound to the haemoglobin molecule as an animal breathes in. Haemoglobin has the valuable capacity to release carbon dioxide and absorb oxygen when the partial pressure of oxygen is higher, while doing the opposite when the partial pressure of oxygen is lower, as far as I can tell, and it has been 40 years since I took "A" level biology. Because air (typically) contains a significant excess of oxygen over carbon dioxide, blood moves to the lungs where it excretes carbon dioxide. Through the aerobic citric acid cycle, oxygen is reacted by metabolism in the body's tissues to produce carbon dioxide. Red blood cells give up oxygen to the tissues, thus when the oxygenated blood enters the tissues, carbon dioxide is transported from the tissue to the hemoglobin in the red blood cells.
Another way of saying it:
Diverse gases are naturally exchanged across a certain respiratory surface through a process known as gas trading. A functional framework for their commerce is essential since gases are constantly needed by cells and metabolic processes and given as a by-product. It is related to breathing in living things and to photosynthesis in plants as well. In order for cells to function properly when breathing, waste carbon dioxide (CO2) must be expelled, but during photosynthesis, CO2 enters plants and O 2 is released. Gas atoms move from a range of high fixation to low fixation as a result of dispersion down a focal angle, which essentially causes the trading of gases.
Thank you, I hope this helped.
- Eddie
Scalcet8 3. 8. 505. xp. a bacteria culture grows with a constant relative growth rate. after 2 hours there are 400 bacteria and after 8 hours the count is 50,000.
Find the initial population?
The initial population was 80
Solution ;The bacteria culture has a constant growth rate.
So, N(t) = No*(1 + r)^t
Solution :
400 = No*(1 + r)^2
50000 = No*(1 + r)^8
(1 + r)^6 = 125
=> 1 + r = 2.2360
No = 400÷(1 + r)^2 = 80
Hence, now we can conclude that the initial number of the bacterial culture was 80.
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High levels of which lipoprotein class are associated wit decreased risk of accelerated atherosclerosis?
The "bad cholesterol" transporter LDL is clinically linked to atherosclerosis and high LDL levels.
The "bad cholesterol" transporter LDL is clinically linked to atherosclerosis and high LDL levels.Chylomicrons, LDL, and VLDL levels that are higher are linked to atherosclerosis.Your blood vessels become clogged with plaque as a result of high cholesterol. Atherosclerosis is the medical term for this plaque buildup. Atherosclerosis increases the likelihood of developing a wide range of illnesses.LDL-loaded macrophages grow into foam cells, which encourage inflammation and accelerate atherosclerotic plaque development. The plaques can become unstable and restrict the artery. A ruptured plaque can trigger blood clotting, obstruct blood flow to the brain or heart, and cause a heart attack or stroke.learn more about atherosclerosis here: https://brainly.com/question/4142223
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Part 2
1. Go to Phet Reversible Reactions Simulation (click here).
2. Add in 5 of each A and B molecules
3. After observing for 10 seconds, what is happeningto both the A and B molecules? Other
observations?
It is observed that after adding 5 each to molecules A and B; of Phet Reversible Reactions that the equilibrium goes right, away from the reactant
However, on the other side, If we add product, equilibrium goes left, away from the product
This is because in reversible reactions, both forward and backward or reverse directions of the reaction usually occur at the same time.
What are reversible reactions?Reversible reactions can be defined as a type of chemical reaction in which the reactants form the products that; and in turn, react together to give the reactants back.
Generally, reversible reactions usually will reach an equilibrium point where the concentrations of the reactants and products will no longer change.
Please note that the " Phet " mentioned above means Physics Education Technology. It is a research based simulations for tutoring science subjects
So therefore, it is observed that after adding 5 each to molecules A and B; of Phet Reversible Reactions that the equilibrium goes right, away from the reactant
Complete question:
What happens when you add 5 each to molecules A and B in a reversible reaction?
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Two types of toad live in the same habitat, but one type breeds in the spring and the other breeds in the fall. what conclusion can be drawn from this information?
The conclusion that can be obtained from this information is that speciation might happen due to the crossing in different periods between toads.
What is speciation?Speciation refers to the emergence of isolation reproductive barriers due to some type of restraint in gene flow in the population.
Speciation may be due to geographical barriers such as new individuals on an island or ecological causes (as in this case) where individuals can cross in different periods.
In conclusion, the conclusion that can be obtained from this information is that speciation might happen due to the crossing in different periods between toads.
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What is steinbock's opinion of the case in which the infant with down's syndrome was allowed to die through passive euthanasia?
What is steinbock's opinion of the case in which the infant with down's syndrome was allowed to die through passive euthanasia because Doctors merely withheld treatment so it was morally acceptable.
Passive euthanasia means intentionally allowing a patient die by prohibiting artificial life support such as a ventilator or feeding tube. Some ethicists distinguish between withholding life support and withdrawing life support .Steinbock believes that in a few situations it is acceptable for a doctor to intentionally terminate a patient's life. A treatment that counts as ordinary care in one situation may count as extraordinary care in a different situation. Steinbock believes that a quick death is always acceptable then a lingering one.
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What conditions are necessary in order to use a t-test to test the differences between two population means?.
Each member of the first sample must be paired with a member of the second sample, and both samples must be drawn at random from a normal population.
What prerequisites must be met in order to utilize the t test to compare two population means?The samples are separate and at random. It is unknown what the population standard deviations are. Either the populations are regularly distributed or both samples have sample sizes of at least 30.
Which prerequisite must be satisfied for the two sample t test to be run?Hypotheses for the two-sample t test
A valid test requires independent data values. One observation's measurements have no bearing on any other observation's measurements. Each group's data must be collected from the population using a random sampling.
What are the t-test's underlying basis?The scale of measurement, random sampling, normality of data distribution, appropriate sample size, and equality of variance in standard deviation are some of the frequent presumptions made while conducting a t-test.
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The colorless liquid produced as a byproduct when plasma passes nourishment to capillaries and cells is known as?
The colorless liquid produced as a byproduct when plasma passes nourishment to capillaries and cells is known as Lymph.
The extra fluid that leaks out of cells and tissues but is not reabsorbed into capillaries is what is referred to as lymph, also known as lymphatic fluid. Since RBCs are missing in lymph, lymph is colourless, the colour of blood is caused by the presence of haemoglobin in RBCs.
They can be discovered in a number of locations on the body, including as the groyne, armpits, chest, abdomen, and throat. They typically exist in chains or groupings. All are located close to veins and arteries and are embedded in fatty tissue. Although lymph nodes serve a variety of purposes, body defence is typically one of them.
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Why did we use a primary antibody that recognizes the xpress epitope tag and not the his6 tag to detect rgfp?
we use primary antibodies that recognize the Xpress epitope tag and not the his6 tag to detect rGFP because using antibodies that can detect his-tag will get bind to it.
Your immune system creates defensive proteins called antibodies. They bind to antigens (foreign substances), which include poisons, viruses, bacteria, and fungus, and eliminate them from your body. Your immune system creates defensive proteins called antibodies. They bind to antigens (foreign substances), which include poisons, viruses, bacteria, and fungus, and eliminate them from your body.
A protein called an antibody is created by your immune system to attack and neutralize antigens. The B cell produces antibodies (specialized white blood cells). A B cell multiplies and clones when it comes into touch with an antigen. These cloned B cells, also known as plasma cells, unleash countless quantities of antibodies into your lymphatic and blood systems.
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What do all consumers have in common?
What Consumers have in common is that, they are all living things that live off of hunting and eating to gain energy and survive (without eating/hunting they die).
examples : Cows , Pigs , Horses
In nature, all organisms are subject to natural selection. some scientists have theorized that we have stopped evolving because we can control our environment and reduce selective pressures. do you agree or disagree that humans have stopped evolving? why?
No, humans haven't stopped evolving.
Why is it not possible to stop evolving?Extinction is the sole method that may effectively halt the evolution of any living being. Reducing and maintaining population size to a limited number of people can delay evolution. By reducing the introduction of new mutations into the population, this will reduce the amount of genetic variation that is lost through genetic drift. A population's capacity to evolve can be significantly reduced, but not entirely eliminated, by sustained limited population size because genetic variety is the foundation of all evolutionary change. But with humans, there is no doubt that this is not the case.
Since our population has been growing over the past 10,000 years, the contemporary human gene pool today holds a vast store of genetic diversity. Consequently, our capacity for evolution has never been greater. Indeed, instances of recent, positive selection created, not lessened by cultural change, have made use of this genetic variety. The distribution of genetic variation within and among local populations is fast changing, which is driving a significant evolutionary change in the human species. This transition is further fueled by a fundamental shift in the equilibrium between genetic drift and gene flow.
Even if our cultural innovations do decrease selection on a characteristic, that trait may nevertheless evolve in correlation with the evolution of another trait, frequently in a non-adaptive manner and occasionally in a moderately maladaptive manner. Humans will continue to evolve as long as there is a reproducing population.
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The major significance of Koch's work was that Group of answer choices Microorganisms cause disease. Microorganisms are present in a diseased animal. Microorganisms are the result of disease. Microorganisms can be cultured. Diseases can be transmitted from one animal to another.
The major significance of Koch's work was that microorganisms are present in a diseased animal; option B.
What are Koch's postulates of disease?Koch's postulates of disease refers to the postulates by the German Physician of the 19th century, Robert Koch. The postulates describes and helps to identify whether a particular microorganism is the cause of a given disease.
Koch's postulates are given below as follows:
The microorganism must be found in diseased individuals but not in healthy individualsThe microorganism must be isolated and cultured from the diseased individualInoculation of a healthy individual with the cultured microorganism must result in that particular diseaseThe microorganism must be re-isolated from the inoculated, diseased individual and must be similar to the original microorganism.Therefore, Koch's postulates most significantly helped to prove that microorganisms are present in a diseased animal.
In conclusion, Koch's postulates were significant in explaining the role of microorganisms in disease conditions.
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