What do we call people who donate plasma?

If I remember correctly we call them blood donors.

Explanation:

I hope this helped.

Bye!

They make up just 2 in 50 people, their plasma is universal. This means their plasma can be used by anyone. At noncommercial donation sites, people can donate plasma every 28 days, up to 13 times a year.

well for one plants are always the producer, so a is the answer. a wolf is more of the consumer(predator) and the deer is the prey so i know those two are out of the question. also mushrooms are fungi/fungus so a is the producer.