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.
Oxidized hydrogen does not participate in mineral formation.
Answer:
D
Explanation:
The G2/M check point makes sure that <u>all of the chromosomes have been replicated.</u>
- <em>Is all DNA replicated?</em>
- <em>Is all DNA damage repaired?</em>
It is the rib cage (thoracic cage)