B . By altering the enzyme's shape and structure due to a change in its optimal pH.
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Answer:
D. Pheasants that pecked immediately after hatching had the highest survival and reproductive success
Explanation:
This means that behavior of pecking increased their survival and reproductive success and become favorable by natural selection.
Natural selection is evolutionary mechanism which favours traits (structures, behavior) of an organism that help him survive and reproduce. In the example, above, pheasants that pecked survived and that was the favorable trait by natural selection.
<span>The hypothalamus in the brain plays a primary role in regulating body temperature. When a person is exposed to a cold environment, the hypothalamus senses such a change, causing the body to undergo changes that conserve heat (blood vessels constrict, muscle cells contract involuntarily, a process referred to as shivering). Conversely, when one is exposes to excess heat, the hypothalamus also senses such an environmental change, and triggers physiological processes such as sweating and the dilation of blood vessels.</span>
Answer:
Commensalism
Explanation:
Commensalism is the condition in which one organism is harmed and the other is neither harmed nor benefited. The animals are being benefited but the tree is neither benefited nor harmed.
Robert hooke coined the term cell when studying thin slices of cork. these Dead
Plant Cells were the first cells observed because the thick cells.
