Answer:I think it’s “provides nutrients to muscle cells
Explanation:
It is the most important because we need to know how the earth functions
Astronomy is the study of universe in a way, because it studies astronomical bodies and how they interact between eachother.
The objects they study can be comets, planets, stars, black wholes, asteroids, etc.
Hope it will,
BioTeacher101
(If you have any questions feel free to ask the in the comments)
Well Gravity keeps everyone on the ground. um, gravity helps us stay in orbit.
