Keystone species ; this is a species whose presence is critical to the composition and integrity of the community
Esophagus & large intestine
Answer:
Produce energy (in the form of ATP) for metabolic processes and muscle contraction.
Explanation:
C because it really doesn’t matter if you wash your hands before because it is recommended to wash them after to prevent any infections or diseases
Answer:
D
Explanation:
The item labeled 2 is the cell capsule that protects the cell from engulfment by eukaryotic cell, such as macrophages.