Mercury because it is way too hot to have an atmosphere.
A and B. Because if heart cells were located in your brain, your brain would not perform the right function. And B because if cells perform different functions and are in the wrong spot im your body it wouldnt work.
Answer:
in single-celled organism,signaling allows population of cells to coordinate with one another and work like a team to accomplish tasks no single cell could carry out on its own. the study of cell signaling touches multiple biological disciplines 5 years developmental biology , neurontology, and endocrinology.
* explanation* : hope this helped you
Answer:
Summary. Stars exist in a range of colors: red, orange, yellow, green, white and blue with red being the coolest and blue being the hottest. A star's color indicates it's temperature, composition and relative distance from earth.Explanation:
<span>When there is no oxygen, or the organism cannot use oxygen for respiration.
</span>
