Explanation:
plants grow on the outskirt and gradually move toward the center the fish use the water and so if there are no fish the water rises since nothing is using it
Hypocalcemia is the medical condition with<span> low calcium levels in the blood serum.
</span><span>Low calcium levels blood can weaken the bones, create kidney stones, and interfere with the way your heart and brain works.</span>
The effects of Hypocalcemia on the heart are w<span>eak contractions, arrhythmias, and low BP., weak thready pulse.
</span><span>Hypocalcemia causes weak cardiac contractions because it increases the </span>resting membrane potential and the excitability of the cardiac muscle.
Answer:
I think the answer is b. DNA