Hey y'all I just really need help with this question so if y'all didn't mind and try to help me that would be greatHELP ME PLEASE I'LL MARK YOU THE BRAINEST 2. Which variable by itself is least likely to cause the destruction of the reef ecosystem? Which variable by itself is more likely to cause the destruction of the reef ecosystem? (Hint: you may need to change just one variable at a time and observe the results to get this answer)

Animal bodies (and even plant bodies for that matter) are complex enough that life couldn't exist without enzymes. enzymes are usually large, complex biological catalysts that are expensive to make. enzymes speed up the rate of chemical reactions without being used up during the reaction (they can be reused many times). they are highly specific in the reactions they regulate. knowing what enzymes are and how they function, why does this explain why complex life forms could not exist if there were no enzymes.

Which of the following is the source of energy for photosynthesis? a.) glucose b.) chlorophyll c.) carbon dioxide d.) sunlight

Which of the following statements about protists are true? a. they are typically found in moist environments. b. they are all unicellular. c. they have a nucleus. d. they are all multicellular.