For the first one I’d say D
The answer for the 2nd one is C.
Answer:
Niche
Explanation:
Niche refers to adaptive features of an organism, its activity pattern and consumption of resources in the system.
Niche of an organism refers to its habitat, activity role and functional position within system. It includes the resources such as food that it obtains from the habitat for its survival.
Use a sandbag to hold it in place
Acetylcholine..
hope it helps