Answer:
In general, life needs to maintain a pH level between 05-8 ( second choice)
<span>Control of physiological activities. Homeostasis involves the steady state and regulation of the body's internal environment. Irritability is the ability to respond to a stimulus.</span>
A. The sequence of DNA bases of a gene changes when a gene undergoes <span>mutation
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Hope this helps!</span>
the food must be broken down by use of enzymes,during the process of respiration.
