Answer:
Air temperature
Explanation:
These variations in air pressure are due to temperature differences caused by variations in solar energy received at the surface of the earth
Out of all of the choices to be made, the Archaea and bacteria both can keep their DNA in the form of a nucleoid in common.
Phospholipids have two distinct polarities. The phosphate head is always polar, while the two "tails" it has are nonpolar.
Answer:
Root hair cells are alive and therefore need energy, which is why root hair cells contain many mitochondria in them. Root hair cells don't contain chloroplasts. Chloroplasts are used by the plant to make food using light energy. Since the roots aren't exposed to any form of light, they have no need for chloroplasts.
