Answer: B. They allow for specific substance to travel throughout the cell.
Explanation: I know this because carrier proteins and channel proteins are some types of embedded proteins.
The carbon cycle moves through virtually all of the earth's spheres.
<h3>Carbon cycle</h3>
There are 4 majors spheres of the earth:
- Atmosphere
- Geosphere or Lithosphere
- Biosphere
- Hydrosphere
The carbon cycle moves through the air (atmosphere), oceans (hydrosphere), organisms (biosphere), and the soil (geosphere).
Thus, the carbon cycle moves through all the spheres of the earth.
More on the carbon cycle can be found here: brainly.com/question/1627609
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A virus's ability to infect an animal cell depends primarily upon the "<span>presence of receptor sites on the cell membrane"
Hope this helps!</span>
Answer:
b
Explanation:
I looking at the electro magnetic spectrum I can tell scientists if things are moving toward the Earth or away from the Earth