Answer: B. Commensalism
Explanation: Commensalism is an association between two organisms in which one benefits and the other derives neither benefit nor harm. So, since the remora benefits and the shark is really not harmed or benefitted, B is the best answer.
Bacteria in soil feeds on dead organisms.
Answer:
To keep the animal alive for example: the functions of lipids include storing energy, signaling, and acting as structural components of cell membranes.
Carbohydrates: One of the primary functions of carbohydrates is to provide your body with energy.
Explanation:
I think it may be "sect", but if you have answer choices it would help a lot :)