Answer:
The answer is C. Their cells have nuclei.
Answer:
Excretion
Explanation:
The excretory system removes cellular wastes and helps maintain the salt-water balance in an organism. When cells break down proteins, they produce nitrogenous wastes, like urea. The excretory system serves to remove these nitrogenous waste products, as well as excess salts and water, from the body.
During exponential growth the rate of growth accelerates according the the number in the exponent of the base, which can of course vary depending on circumstance.
