Answer:
directional selection, is a mode of negative natural selection in which an extreme phenotype is favored over other phenotypes, causing the allele frequency to shift over time in the direction of that phenotype.
<span>Answer: a. Citizens over the age of 65 use social media primarily to follow the activities of their families. </span>
<span>More than half of the citizens over 65 say that they have a social media account. They read other postings but post information about one-fifth as often as they read posts. Most of their feeds consist of posts by relatives. From this passage, we can logically say that Citizens over the age of 65 know how to use the social media and they use it primarily to follow the activities of their families. </span>
<span>Changes in physical structure, function, or behavior that allow an organism or species to survive and reproduce in a given environment. - Adaptation</span>
Answer:
Exposure to radiation. Family history of cancer/hereditary. Certain chemicals. Viruses and bacterias. Use of tobacco. Poor diet choices. Use of alchohol.
Explanation:
I did research on this topic last week :) sorry i cant explain any better !!
<span>Control - Chemicals produced in the endocrine glands (HORMONES) and chemicals produced by nerve cells are primarily responsible for communication between cells.</span>
