Answer:
Consumer and producer
Explanation:
Algae is a producer, making its own food with the sun. The fish is a consumer, consuming the algae for food.
Answer:
B) cAMP
Explanation:
Phosphodiesterase is an enzyme that breaks a phosphodiester bond, for example in molecules such as cAMP and cGMP. So, phosphodiestarases are are regulators of signal transduction: regulate the duration of signaling pathway.
Caffeine is central-nervous-system stimulant and the mechanisms of its action usually are: mobilization of intracellular calcium or inhibition of specific phosphodiesterases.
It's less to be less to be less
The answer to your question is A., as the random movement is a movement
