Cell wall because it protects the cell membrane.
Answer:
The blood pressure is increased to pump more blood to distribute more oxygen to the muscles
Explanation:
When we do activities that demand heavy exercise like running, our body needs more oxygen to carry out property the exercise. Oxygen is transported to muscles by the circulatory system (principally blood), our heart starts to pump faster the blood ( increase the blood pressure) to distribute the oxygen between muscles, consequently, we start to breathe faster to increase the oxygen intake.
Answer: Errors that occur during DNA replication lead to mutations, which represent permanent, heritable changes in genetic material. These errors can pass from parent cell to daughter cells and affect many generations of cells.
Explanation:
Answer:
separate or unzip the two strands of the double helix.
Explanation:
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