Organ
The heart is a muscular organ that is part of the circulatory system.
The important thing to identify the degrees of lightness to darkness in each level.
Hope this helps you.
Answer:
B
Explanation:
organ system is two or more organs working together to perform a specialized function.
Answer:
Characteristics
Explanation:
not genetic diversity that would invlove other organisms, not dna because DNA is not being replictaed, and not A because come on
Answer: a) plasma membrane
Explanation:
