Answer: Memory B cells
Explanation:
Memory B cells remember the same pathogen for faster antibody production in future infections.
Answer:
<em>A. Natural Selection</em>
Explanation:
Producers create food by them selves from the sun but consumers eat the producers they both consume food. But the consumers get less energy than the consumers cause they pass on less energy than they consume hope it helps
Elite trainer
Answer:
you are correct but it can also be lack of sunlight or light
D. an animal that resides in the twilight zone
