Choose the word that best completes tis sentence blank can only grow and multiply within the cells of another living thing but they can remain active on a serface for several hours or days.

no i don't feel that humans have oversubscribed some medications

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.

1. is geographic distribution

2 is increasing complexity

3 is transitional forms