Answer:
The respiratory system enables oxygen to enter the body and carbon dioxide to leave the body.
Answer: mountain and coastal plains
Explanation: i just took the exam
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The two structures make up a single replicated chromosome is sister chromatids.The term 'sister chromatid<span>' only applies when the identical copies are closely associated with one another and held together by a centromere. </span>
Explanation:
They are natural as they are found in forests different trees and plants
no need for more money because if we can learn to use such herbs we can ourselves treat various kinds of small diseases like commn cold,constipation.
no side effects because they do not contain chemical composition
no addiction as they have no amount of drugs in them
treatment of problem from its root cause as they do permanent cure not temporary to stop problem for certain time
Answer:
I think it isB
Explanation:
Because blood cells have genes than skin cells
