Answer:
Dark matter maybe... or time
something like that
Explanation:
hope this helped! :D
brainliest??
The anser is d. no genotype is favored
The nutrient that forms part of the cell membrane are proteins.
The Eustachian tube is the
structure that allows upper respiratory infections to spread. The eustachian tube is a canal
that links the middle ear to the nasopharynx, which is composed of the upper
throat and the back of the nasal cavity. It also controls the pressure inside
the middle ear, making it equal with the air pressure outside the body.