Answer:
<h2>
certain genes being expressed in some cells and not in others</h2>
Explanation:
The DNA is present in every cell of the multicellular organism but that does not mean that every cell will perform the same function.
The function of the cell is decided during the cell differentiation phase the function of the cell is determined by the expression of specific genes. Expression of these genes controls the functions of the cell.
In the given question the differences in the structure and function of the brain and kidney arise due to different expression of genes in different cells.
Thus, the selected option is the correct answer.
Defenses against herbivory and adaptations related to wind dispersal of pollen are likely to cause human health problems.
<h3>
What are defense responses against herbivores?</h3>
The first line of defense in plants is an intact and impenetrable barrier composed of bark and a waxy cuticle. Both protect plants against herbivores.
Other adaptations against herbivores include hard shells, thorns (modified branches), and spines (modified leaves).
They discourage animals by causing physical damage or by inducing rashes and allergic reactions.
Some Acacia tree species have developed mutualistic relationships with ant colonies: they offer the ants shelter in their hollow thorns in exchange for the ants’ defense of the tree’s leaves
To learn more about first line of defense: brainly.com/question/15026334
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The answer is lipids.
<span>The macromolecules with the highest number of carbon-hydrogen (C-H) bonds are the lipids. The one of the main functions of the lipids is energy storage, therefore, they contain many C-H bonds which contain potential energy. Although carbohydrates can also store energy, they contain much oxygen .
So, he will need mostly black and red balls for a model of lipids.</span>
His decision to make these lifestyle changes is most likely based on his knowledge that <span>they have higher rates of hypertension and obesity.
High amounts of salt can lead to many problems in anyone's body, this doesn't only refer to African Americans. However, if John doesn't exercise, he might get fat because he may be prone to obesity.
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