Although the majority of the air we breathe is N2, most of the nitrogen in the atmosphere is unavailable for use by organisms. This is because the strong triple bond between the N atoms in N2 molecules makes it relatively unreactive. However organisms need reactive nitrogen to be able to incorporate it into cells.
How does someone become a carrier for sickle cell anemia?
A. They inherit one copy from one parent
B. They inherit two copies from two parents
C. It's completely random
Answer: A !
Explanation:
2. If there is one carbon atom in the reactants, how many carbon atoms are in the products?
Answer:
There is one carbon atom on the reactant side and one carbon atom on the product side.
Explanation:
The same is true for oxygen except that there are two oxygen atoms on each side (remember that the subscript of two in the oxygen molecule means that there are two oxygen atoms bonded together).
asexual reproduction results in genetically different or identical daughter cells?
Answer:
Identical daughter cells
Explanation:
Asexual reproduction is producing offsprings from 1 parent so the offspring (kid) will be identical to the parent! :)
Lactase and carbonic anhydrase are examples of what type of substance?
substrate
reactant
product
enzyme
Answer:
Enzyme
Explanation:
i need help...................
The red structure represents a...... ANSWER I WILL MARK BRAINLIEST.
Answer:
Okay I want to say C. chromosome I'm 9/10 that it's right
Explanation:
hope that helped'
Which of the following statements best describes cellular respiration?
A. Cellular respiration occurs in animal cells, but not plant cells.
B. Carbon dioxide is a reactant and oxygen is a product in the reaction.
C. The process of cellular respiration stores chemical energy in food into ATP molecules.
D. Cellular respiration produces glucose to maintain homeostasis in plants and animals.
Answer:
A cellular respiration occurs in animal cells but not plant cells
Explanation:
photosynthesis occurs in plant cells
Answer:
Your Answer would be C I took this test in the past so i think its c
Explanation:
Blank is deliberately changed in scientific study
Answer:
The variable that is deliberately changed is called the independent variable.
Explanation:
The independent variable is the variable that is deliberately changed by the scientist study. The dependent variable is the one observed during the experiment.
Explanation:
At which level is the MOST amount of ecosystem energy found?
- tertiary consumer
- secondary consumer
- primary consumer
- producer
the answer is producer
Answer:
producer
Explanation:
In all the ecological pyramids, producers (organisms that produce their own food) are found at the lowest trophic level. This trophic level contains the highest amount of energy.
The energy in each trophic level of an energy pyramid is just 10 percent of the energy in the level below it. What accounts for the decrease in energy from the lowest level to the highest level of an energy pyramid?
Which of the following is most likely to occur as a result of continued high rates of deforestation in the Amazon Básin?
A
The amount of total carbon dioxide in the atmosphere will increase because of decreased photosynthesis.
B
There will be a decrease in soil erosion in the Amazon Basin because of decreased tree cover.
С
There will be an increase in biodiversity in the Amazon Basin community because of decreased competition for habitat.
D
The amount of total water vapor in the atmosphere will increase because of higher rates of transpiration.
Deforestation or forest clearance is the removal of a forest or stand of trees from land. Therefore, option (D) is correct.
What do you mean by deforestation?Deforestation is the purposeful clearing of forested land. Throughout history and into modern times, forests have been razed to make space for agriculture and animal grazing, and to obtain wood for fuel, manufacturing, and construction.
Moreover, the loss of trees and other vegetation can cause climate change, desertification, soil erosion, fewer crops, flooding, increased greenhouse gases in the atmosphere, and a host of problems for Indigenous people.
Therefore, deforestation refers to the decrease in forest areas across the world that are lost for other uses such as agricultural croplands, urbanization, or mining activities.
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what is shared characteristic of all animals
Answer:
They are all living, they are multicellular organisms, they are all members of a kingdom, have DNA, etc.
Explanation:
Answer:
Most animals share these characteristics: sensory organs, movement, and internal digestion. All of them are illustrated in Figure below. Animals can detect environmental stimuli, such as light, sound, and touch. Stimuli are detected by sensory nerve cells
Explanation:
hope this helps! gimme brainleist plz
What are the main atoms of a protein molecule?
Answer:
Explanation: The building blocks of proteins are amino acids, which are small organic molecules that consist of an alpha (central) carbon atom linked to an amino group, a carboxyl group, a hydrogen atom
Themain atoms of a protein molecule are nitrogen, carbon, hydrogen, oxygen, etc., which are present in an amino acid, and in the protein there is also the presence of sulfur.
What is the significance of the atoms in proteins?Proteins are found in animal and plant cells and can be consumed by other animals for energy, proteins are made up of amino acids that are linked together by peptide bonds, and in the peptide bonds, the amino group and the carboxylic group make up the peptide bond. The atom's specialty in the protein is that it imparts a unique property to specific proteins, such as keratin proteins, which differ from spider silk.
Hence, the main atoms of a protein molecule are nitrogen, carbon, hydrogen, oxygen, etc., which are present in an amino acid, and in the protein there is also the presence of sulfur.
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The shape of the land in the series of pictures below most likely changed because of –
A. weathering and erosion
B. flooding and faulting
C. volcanoes and earthquakes
D. melting and freezing
What type of boundary is depicted in the image below?
a. transform
b. collisional
C. convergent
d. divergent
Please select the best answer from the choices provided
Answer:
B-Collisional
Explanation:
Collisional boundary is the type of boundary depicted in the image below and is denoted as option B.
What is Collisional boundary?
This boundary occurs when two land masses meet and they crush together to form fragments.
The image shows the land masses being together and crushing which is why collisional boundary was chosen.
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The life that exists on Earth today likely arose from a single common ancestor. Judge each
statement below and select the ones that explain how natural selection has played a role in the
diversity of life on Earth from that single ancestor. Select all that may apply. *
Answer: C and D?
Explanation:
Took the test, got it wrong showed the answers.
The diversity of life on Earth is because of the following reasons:
Natural selection acted on phenotype that were the result of new mutation in a population. Natural selection acted on isolated populations separately, allowing for those populations to diverge over time allowing for speciation. Natural selectionNatural selection can be defined as the differential survival and reproduction of those organisms that have beneficial traits over others. Those organisms have beneficial phenotype suitable for the environment survive in the adverse environmental conditions.The beneficial traits pass on from parents to offspring this leads to the speciation.Learn more about natural selection:
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What is the function of the electron transport chain in each. Photosynthesis and Respiration.
Answer: The primary task of the last stage of cellular respiration, the electron transport chain, is to transfer energy from the electron carriers to even more ATP molecules,
Explanation:
Describe two ways effects on society can impact the decision of whether to mine for resources in certain areas.
In the certain area that people are looking to mine,it may have lots of people. If there a lots of people,and there is an explosion in the mine,lots of deaths would happen. If there was people with lots of sickness,or a huge hospital in the town this would be bad,because they would be spreading possibly toxic and lethal chemicals inside of the town and killing off all of the people. Truly the main reason for society impacting this is health and money. It may be expensive in this area.
Hope this helped!
-Nea
There may be a large number of people in the area where people want to mine. There will be many deaths if there are many people and there is an explosion in the mine.
What is mining?Mining is the extraction of useful materials from the earth. Coal, gold, and iron ore are some examples of mined materials. Iron ore is the raw material used to make the metal iron.
Mine exploration, construction, operation, and maintenance may result in land-use change and have negative environmental consequences such as deforestation, deterioration, contamination.
Also, the modification of soil profiles, contamination of local streams and waterways, and an increase in noise and dust.
There could be a large population in the area where people want to mine. If there are a lot of people and there is an explosion in the mine, there will be a lot of deaths.
Thus, this way, effects on society can impact the decision of whether to mine for resources in certain areas.
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Which organelles can be found in both plant and animal cells? A)cell membrane, nucleus, and chloroplasts B)cell wall, cell membrane, and nucleus C)endoplasmic reticulum, cell membrane, and nucleus D) chloroplasts, cell wall, and endoplasmic reticulum
Answer:
Structurally, plant and animal cells are very similar because they are both eukaryotic cells. They both contain membrane-bound organelles such as the nucleus, mitochondria, endoplasmic reticulum, Golgi apparatus, lysosomes, and peroxisomes. Both also contain similar membranes, cytosol, and cytoskeletal element.
1. Why do some children fall ill more frequently than
others living in the same locality?
Answer:
Some children fall ill more frequently than other living in the same area due to their weak immunity, or slow immune system response.
Which are examples of active transport across the cell membrane?
a. osmosis and diffusion
b. diffusion and facilitated diffusion
c. osmosis and chemiosmosis
d. endocytosis and exocytosis
Answer:
d. endocytosis and exocytosis
Why do ears help with balance?
2. In Squidward's family, a blue body color (B) is dominant to green (b). Determine the phenotype for each
genotype below based on this information.
BB
Bb
bb
Which of the following demonstrates an organ providing a force?
1.The eye transmits information to the brain.
2.The heart contracts and expands to move blood.
3.The kidney filters waste from blood.
4.The skin protects other organs from damage.
Answer:
I would say the answer would be: 2. The heart contracts and expands to move blood.
Explanation:
The heart is forcing itself to contract and expand so it can move blood throughout the body. If I am wrong, let me know, but I believe that this is correct since it's a function of force.
Gametes must be haploid because
two gametes will unite during fertilization to create a diploid cell
fertilization results with a haploid zygote
gametes are small and can hold only the haploid number of chromosomes
the gametes' chromosomes will be replicated prior to cell division
Due to the fact that two gametes (one from each parent) unite during fertilization to form a diploid zygote, gametes must be haploid, meaning they contain half as many chromosomes as somatic cells of an organism. Therefore, the correct option is A.
When gametes fuse, a diploid cell with a full set of chromosomes is produced, which combines their haploid sets of chromosomes. After cell division and growth, this diploid zygote will form a new human with a full complement of chromosomes in each cell. To preserve proper ploidy during fertilization and subsequent development, gametes must be haploid.
Therefore, the correct option is A.
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Your question is incomplete, most probably the complete question is:
Gametes must be haploid because
two gametes will unite during fertilization to create a diploid cellfertilization results with a haploid zygotegametes are small and can hold only the haploid number of chromosomesthe gametes' chromosomes will be replicated prior to cell divisionwhich is the largest cell
Answer:
Neurons are the largest cells.
Even among those, the ones which come out of the spine and reach every part of your body.
And every part of your body is attached to your spine with a single neuron, which is also a single cell.
So from the tips of your finger runs a single neuron which goes all the way to your spine, yes, a single cell which is few feet in length.
Explanation:
help a girllll outttttttt pleaseeeeeee
Answer:
We get the materials to make new cells through...
biosynthesis, which puts small organic molecules together to create larger molecules.
Explanation:
Biosynthesis is the process in your body that turns simple structures into more complex structures. It can happen within a single cell (or within a single organelle within a cell), or across multiple cells. In this case, multiple, since it is referring to humans.
Either this option or A.
The function of the erector spinae muscles is to
Answer:
support the back’s upright posture.
Explanation:
edge 2020 :)
The major function of the erector spinae muscles is to straighten the backside of your body and provide easy side-to-side rotation.
What do you mean by Muscles?Muscles may be defined as body tissue comprised of sheets or bundles of cells that contract to create movement or enhance tension.
The erector spinae muscles are located on each side of the vertebral column, which helps in the bilateral contraction and movement of the vertebral column which gives the body a state of rigidity.
Therefore, the major function of the erector spinae muscles is to straighten the backside of your body and provide easy side-to-side rotation.
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The Geologic Time Scale is a record of what?
Answer:
the geologic time scale (gts) is a system of chronological dating that classifies geological strata in time. it is used by geologists to describe the timing and relationships of events in geologic history
Which of the following is true about the Calvin cycle?
a. Rubisco fixes O2 to a carbohydrate molecule.
b. Both ATP and NADPH are needed to make sugars.
c. Light energy is converted to chemical energy.
Answer: Rubisco fixes O2 to a carbohydrate molecule.
Explanation:
Both ATP and NADPH are required to make sugars in Calvin cycle. In the process of Calvin cycle, the atmospheric carbon dioxide is fixed. Thus, the correct option is B.
What is Calvin cycle?
The Calvin cycle is also called the light independent reactions or the dark reaction of photosynthesis. Calvin cycle is also known as the C3 cycle. It is the second stage of the photosynthesis, in which glucose molecules are synthesized. The Calvin cycle makes use of the products formed in the light dependent reaction of photosynthesis such as ATP and NADPH.
ATP and NADPH are the products of light reaction of photosynthesis which are used to synthesize glucose molecule. In the process of Calvin cycle, carbon dioxide (CO₂) is fixed and not oxygen.
Therefore, the correct option is B.
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Major organs form and cells continue to divide in the __________ stage.
A.
zygote
B.
germinal
C.
embryonic
D.
fetal
Answer:
embryo
Explanation:
Answer:
c
Explanation:
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