The nucleus is a spherical object, and it controls cell activity.
A)animal cells must be in osmotic equilibrium with their surrounding environments, because if they swell or shrink their membranes will rupture.
Answer: Caterpillars and Meadow voles
Answer:
The muscular system is composed of specialized cells called muscle fibers. Their predominant function is contractibility. Muscles, attached to bones or internal organs and blood vessels, are responsible for movement. Nearly all movement in the body is the result of muscle contraction
Explanation:
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I think the correct answer from the choices listed above is option C. Cyanobacteria is responsible for allowing higher life forms to evolve by releasing oxygen, which created the ozone layer, resulting in reduced mutation rate.<span />
