Charlie contracted Lyme disease when he was bitten by a tick, which is a small spider-like animal. The tick carries harmful bacteria that was released into Charlie's blood.
Which list best classifies the causes of Lyme disease?
tick> indirect, bacteria direct
tick multifactorial, bacteria direct
Otick indirect, bacteria indirect
tick direct, bacteria multifactorial

Explanation:

The tick carries harmful bacteria that was released into Charlie's blood.

So, I can conclude that:

tick> indirect, bacteria direct

Hope this helped! Let me know if this is incorrect.

a. decomposes use carbon from dead organisms as fuel for cellular respiration, returning carbon dioxide back into the atmosphere.

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.