<u>Behavior genetics</u> is a field that focuses on how variations in behavior and development in living organism, result from the interaction of genetic and physical environmental factors.
<h3>What is genetics?</h3>
Genetics can be defined as the scientific study of genes, heredity and the similarities or variations of traits (inherited characteristics) in living organisms such as humans, animals and plants.
<h3>The field of genetics.</h3>
Basically, genetics comprises various fields and these include the following:
<u>Behavior genetics</u> is a field that focuses on how variations in behavior and development in living organism, result from the interaction of genetic and physical environmental factors.
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Explanation:
This shows movement of a plant. Plant movement due to external stimuli are of two types: tropism and nasties. When the direction of external stimulus decides the direction of response in the form of growth it is called tropism. Thus, tropism is the directional growth movement of a plant part.
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Stomach acid<span> plays an essential role in the immune system by killing harmful bacteria and parasites that are ingested with food. </span>Stomach acid<span> activates the enzyme pepsin needed for protein </span>digestion<span>. </span>Stomach acid<span> signals to the pancreas produce </span>digestive<span> juices and enzymes to further break down food.</span>