Answer:
23
because humans have 46 chromosome or 23 pairs
Which of these is a source of food for plants?
A.
proteins found in animal tissues
B.
minerals dissolved in the soil
C.
water that falls from the atmosphere
D.
sugars made during photosynthesis
Answer:the answer is A
Explanation:
(80-100 words) What is sickle cell disease? Describe its effects at a protein, cellular and organismal level.
Sickle cell disease (SCD) is a genetic disorder caused by a mutation in the gene that codes for hemoglobin, a protein responsible for carrying oxygen in red blood cells.
The mutation results in the production of an abnormal form of hemoglobin known as hemoglobin S (HbS). Sickle cell disease is inherited in an autosomal recessive manner, meaning that an individual must inherit two copies of the mutated gene (one from each parent) to develop the disease.
Effects at a Protein Level:
Hemoglobin normally has a rounded shape, allowing red blood cells to flow smoothly through blood vessels. However, in sickle cell disease, the abnormal hemoglobin S causes red blood cells to become stiff and take on a crescent or sickle shape under certain conditions, particularly when oxygen levels are low.
Effects at a Cellular Level:
The sickle-shaped red blood cells are prone to clump together, leading to the formation of blood clots. These clots can block blood vessels, causing a reduction in blood flow to various organs and tissues.
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Simlies in science can you help compare theses word with things that are like it and does the same things outside the body???
Every action and movement your body performs is coordinated by the human neurological system.
What are the regulation by all system in the body?More specifically, homeostasis refers to the body's propensity to keep internal conditions like blood sugar and temperature at essentially constant and stable levels.
The receptor, which receives signals and responds to stimuli, the effector, and these three components together make up the regulatory system.
Therefore, The control center originates the signal, and the effector is responsible for transmitting the signals that are relayed from it.
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Look at the equation below. It can be used to calculate distances with ultrasound.
What does the t represent?
Enter your answer
S=vxt
Answer:Doesn't t represent time?
Explanation:
The pH scale ranges from ____________ to ____________ and is used to indicate the ____________ of a solution.
Which letter from the image represents a gene?
Hello!
From the image the letter which represents a gene is D.
Hope this helps!
Answer:
The answer to your question is,
D
Explanation:
I hope this helps, and I did this before
find the diameter of the high power field of a microscope with alow power objective marked 10x, a high power marked 40x, and a low poer field diameter of 1600 micrometers
It is to be noted that the diameter of the High Power Field of the Microscope is 400 Micrometers.
How do you compute the diameter of a High Power Field Microscope?To find the diameter of the high-power field of a microscope, you need to know the magnification of the low-power objective, the elaboration of the high-power objective, and the diameter of the low-power field.
In this case, you are given that the low power objective has a magnification of 10x, the high power objective has a magnification of 40x, and the low power field has a diameter of 1600 micrometers.
To find the diameter of the high power field, you can use the formula:
High power field diameter = Low power field diameter * (Low power objective magnification / High power objective magnification)
Plugging in the given values, you get:
High power field diameter = 1600 micrometers * (10x / 40x)
High power field diameter = 400 micrometers
Therefore, the diameter of the high power field of the microscope is 400 micrometers.
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What soil would be 10% silt, 30% clay, and 60% sand__________
Answer: sandy clay loam
please help I don't know the answer.
CO2 + 6H2O C6H1206 +602
During photosynthesis, what combines
with carbon dioxide to make sugar and
oxygen?
A. H2O
B. NADPH
C. RNA
Its H2O
During photosynthesis, H₂O combines with carbon dioxide to make sugar and .oxygen
The correct option is A.
What is photosynthesis ?The mechanism by which plant convert carbon dioxide, water, and sunshine into oxygen and sugar-based energy is known as photosynthesis.
What makes photosynthesis so important?The primary function of photosynthetic is to transform chemical energy into solar energy, that is then stored for later use. This mechanism primarily provides energy to the planet's life systems.
What does photosynthesis produce?The process through which light energy is transformed into energy in the form of sugars is known as photosynthesis. Using energy from the sun, glucose (or other sugars) are created from carbon dioxide and water, with oxygen being released as a consequence.
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A Haiku about the sea floor spreading
A Haiku about the sea floor spreading is given below:
The Seafloor Spreading
Spreading with dirt and plastics
Leaving sea life dying
What is Haiku?Haiku is a seventeen-syllable Japanese poetry with three lines of five, seven, and five syllables that generally evoke pictures of the natural world.
These are the rules for creating haiku:
There are a total of 17 syllables.Haiku is only three lines long.The first line of a Haiku typically contains 5 syllables, the second line has 7 syllables, and the third line has 5 syllables.Avoid titles and rhyme (both of which are almost never used in haiku), as well as metaphor, simile, and most other rhetorical elements (they are often too abstract or detour around the directness exhibited in most good haiku).
Haikus are historically derived from the Japanese Hokku. Hokkus are group poetry that adhere to the 5/7/5 formula. They are intended to comment on the writers' season or surroundings and to generate some form of contrasting visual split by a kireji or "cutting word."
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Which of the following is
TRUE of the fertilization of
gymnosperms?
A. The seed is carried to a flower on another
tree and gets pollinated.
B. Multiple pollen grains can fertilize one
ovule at a time.
C. Gymnosperms are the only self-fertilizing
plants.
D. When the pollen sticks to the seed cone, a
pollen tube grows to connect it to the egg cell. This is answer
Answer:
Explanation: I just did this question a few mins ago
Why was it important for Mendel to study such a large sample of pea plants?
A. Most of the plants died before reproducing.
O B. Pea plants are very inexpensive plants.
OC. Using more plants speeds up the experiment.
OD. A higher sample size gives more accurate results.
It was important for Mendel to study such a large sample of pea plants because 'a higher sample size gives more accurate results'.
What do you mean by heredity?
Heredity is the passing of genetic characteristics from parents to offspring. It is the process by which certain traits are passed down through generations. It is the genetic material that is passed from one generation to the next.
A larger sample size helps to reduce the amount of variability in the results due to random chance, and increases the likelihood that any observed results are actually representative of the whole population. This is especially important when studying the inheritance of traits, as the probability of a trait being passed on is often very small. By studying a large sample size, Mendel was able to accurately determine the patterns of inheritance for the traits he was studying, and gain a better understanding of the mechanisms of heredity.
Hence, option D is correct.
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Explain how the greenhouse gas effect contributes to climate change.
Greenhouse gases form naturally and are part of the composition of our atmosphere. The conditions on Earth are ideal for life, including us, to thrive. The naturally occurring greenhouse effect, which keeps the planet at a pleasant 15 °C (59 °F) on average, contributes to Earth's hospitality.
However, in the last century or so, humans have been interfering with the planet's energy balance, primarily through the use of fossil fuels, which emit additional carbon dioxide into the atmosphere.
Carbon dioxide levels in the atmosphere have been steadily rising for decades, trapping extra heat near the Earth's surface and causing temperatures to rise.
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Cystic fibrosis is caused by
a mutation in the affected
individual's DNA.
What type of mutation
causes cystic fibrosis?
A. the addition of several different
codons
B. the loss of one base
C. the loss of a whole amino acid (3
base pairs) this
D. the CAG codon repeating at least 40
times
Cystic fibrosis is caused by a mutation in the affected individual's DNA therefore the type of mutation which causes cystic fibrosis is the loss of a whole amino acid (3 base pairs) and is denoted as option C.
What is Mutation?This is referred to as the change in the DNA sequence of an organism and it often occurs when there is an errors in DNA replication during cell division.
Cystic fibrosis is caused by the loss of a whole amino acid (3 base pairs) from the cystic fibrosis transmembrane conductance regulator gene which was why it was chosen as the correct choice.
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The NASA resources are: (Select all that apply.)
free to use
limited in scope
contain information about various aspects of science
used for betterment of human life
Answer:
free to use
used for the betterment of human life
Explanation:
How are geologic timescales created?
Answer:
The fossil forms that occur in the rocks, however, provide the chief means of establishing a geologic time scale, with the timing of the emergence and disappearance of widespread species from the fossil record being used to delineate the beginnings and endings of ages, epochs, periods, and other intervals.
Answer: The fossil forms that occur in the rocks
Explanation: Trust me
Aconite napellus is easily mistaken for an edible herb. This sturdy, low-growing
herbaceous perennial is found in gardens and in the wild throughout Europe and the
United States. The spikes of blue flowers give this plant its common name "monkshood"
because the uppermost sepal is shaped like a helmet or a hood. All parts of the plant are
extremely toxic and gardeners should wear gloves anytime they go near it.
Which of the following tissue layers would you not find is this plant?
Aconite napellus plants commonly found in moist pastures and moist mountainous areas of Europe and Asia.
Aconitum napellus plant is a blue inflorescence ranunculaceae whose roots are confounded with tuberculous turnips. Aconite is a plant. The root is used as medicine. However, aconite contains some poisonous chemicals.
Aconitum napellus is an erect, tuberous-rooted perennial which capabilities dense, terminal racemes of hooded, deep purplish-blue to violet flowers atop rigid, leafy stems typically developing tall. Commonly observed in moist pastures and wet mountainous areas of Europe and Asia.
Aconitum napellus plant, monkshood, aconite, Venus' chariot or wolfsbane, is a species of rather toxic flowering plant in the genus Aconitum of the family Ranunculaceae, native and endemic to western and primary Europe.
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Which is least affected by chemical weathering?(1 point) Responses a bridge made of iron rods a bridge made of iron rods a statue made of marble a statue made of marble a chair made of plastic a chair made of plastic a pile of tiles made of feldspar
The option that is least affected by chemical weathering is D. A pile of tiles made of feldspar.
What is Chemical weathering?Weathering is the term which is referred to as the process in which rocks are broken down into smaller particles through various types of action and mechanism. On the other hand, chemical weathering involves the breakdown of rocks through chemical reactions occurring between the substances involved.
Clay minerals such as quartz, feldspar etc are least affected by chemical weathering due to the absence of chemical reactions occurring thereby making it the most appropriate choice in this scenario.
In conclusion, the correct option is D.
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Ryan is about to board an airplane to fly to Florida for Spring Break. He is very anxious to fly, but he knows his body is having this normal reaction to a stressor. His palms start to sweat, his heart starts racing, and his breathing becomes much faster in anticipation of the flight. Construct an argument using the observations above of how the body is a system of interacting subsystems. Be sure to include at least two body systems involved and how they are working together during this stress response.
The body is a system of interacting subsystems as seen in the instance of Ryan for the following reasons:
the nervous system interacts with the respiratory system to increase the breathing ratethe nervous system interacts with the cardiovascular system to increase blood flow.What are organ systems?Organ systems refer to the system of organs found in the body that work together to perform one or more specific functions.
There are several organ systems in the body that interact with each other.
Some of the organ systems in the body interacting with each other include:
nervous systemmusculoskeletal systemdigestive systemexcretory systemrespiratory systemThe stress response in the body is an example of the interaction of the organ systems in the body.
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How are the rates of use and renewal of game animals regulated?
Hunting licenses ensure that a certain limit of animals is to be killed, as animals are a very important part of wildlife.
What are hunting licenses?
Hunting license/ permit: it is a legal authorization that controls hunting in both commercial and recreational purposes. This license allows a person to buy hunting tags and enter draws. It is a proof of hunter safety education course.
These hunting licenses maintain game animals a renewable resources by keeping populations of wild animals stable.
It helps maintain a proper balance between human needs and the population of animals.
These rules along with the license are to make sure that not just anyone can go and hunt the wild animals.
It also regulates hunting frequency, which prevents wildlife extinction or endangerment.
Therefore, hunting licenses are a way to ensure that only a certain number of animals are killed.
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Question 7
A Split-brain operation cuts the
O Hippocampus; insomnia
O Glia; seizures
O Glia; insomnia
O Corpus callosum; seizures
to prevent
Answer:
A Hippocampus; insomnia
Which could cause a
change to the carrying
capacity of a species in an
ecosystem?
A. seasons changing
B. continuous rotation of resources
C. more predators
D. consistent rain falls
The carrying capacity of a species in an ecosystem is the continuous rotation of resources. Option B.
As abiotic or biotic factors change so does the carrying capacity. Natural disasters can destroy ecosystem resources. When resources are destroyed, ecosystems can no longer support large populations. This reduces the payload. Increased food production through improved agricultural practices control of many diseases with modern medicine, and the use of energy to render historically uninhabitable areas.
Earth's habitable is an example of something that can expand its carrying capacity. Altering ecosystems can increase the carrying capacity of some species, as other species are overwhelmed and populated while others are dramatically reduced due to hunting. Carrying capacity is the maximum number of individuals in a population that the environment can support.
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Answer:
b) continuous rotation of resources
Explanation:
Continuous rotation of resources will cause a change to the carrying capacity of a species in an ecosystem. Therefore, the option (b) is the correct answer.
A diagram of an animal cell is shown below.
animal cell showing organelles
What is the function of organelle 2?
A.
to store ions, create and store steroids, and synthesize and package proteins
B.
to collect, package, and distribute molecules produced by the cell
C.
to supply the cell with energy, in the form of ATP, through the process of cellular respiration
D.
to aid in protein synthesis by joining amino acids together to form polypeptides
i need the picture to see what organelle 2 is
describe how genes are related to the structure and function of proteins
Explanation:
Most genes contain the information needed to make functional molecules called proteins. (A few genes produce regulatory molecules that help the cell assemble proteins)
Answer:
Proteins are composed of long chains of amino acids organized into a specific order. Genes provide the instructions for making the amino acid chains that are then assembled into proteins.
1. Why is electricity consider as our good friend
Answer:
Electricity is considered as our good friend because it is an essential part of modern . People use electricity for lighting, heating, cooling, and refrigeration and for operating appliances, computers, electronics, machinery, and public transportation systems.
True or false: Carbon in the form of carbon dioxide is needed for both processes of photosynthesis and cellular respiration.
Answer:
yes
Explanation:
it is need for both photosynthesis and cellular respiration
Give five points about host cell - Ecoli (Biotechnology)
[tex]{ \boxed{ \red{ \sf{host \: cell - Ecoli}}}}[/tex]
# Multiplies once in every twenty minutes.
# Short lifespan.
# Contains plasmid used as vector in genetic engineering.
# Gram negative and non-capsulated bacteria.
# Sensitive to wide range of antibodies.
How do the body levels of organization demonstrate this biblical concept?
Answer:
Explanation:
Study of human structure and function from a biblical worldview is centered on God’s intricate design. We are fearfully and wonderfully made by the sovereign Designer/Creator, and this truth is evident from the molecular to the systemic levels of organization.
hope it helps
Which hormone helps prevent excessive drops in blood pressure/volume? Not B.
The hormone that helps prevent excessive drops in blood pressure is renin. The correct option is a.
What is blood pressure?Blood pressure is the force exerted by your blood against the walls of your arteries.
Every time your heart beats, blood is pumped into your arteries. When your heart beats and pumps blood, your blood pressure is at its highest.
When the body experiences a reduction in blood flow to the kidneys, such as after a drop in blood pressure, or a huge decrease in blood volume after a hemorrhage or serious injury, this system is activated.
Renin is in charge of producing angiotensin, which causes the release of aldosterone.
Thus, the correct option is a.
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