Answer:
Base pairing occurs via hydrogen bonds between bases in complementary strands of DNA.
Explanation:
Answer is: the part of an experiment that stays the same though out the experiment is constant.
<span>Constant is a quantity that does not change.
</span>Experimental variable<span>, which is the also part of an experiment, is affected by the experiment (have change).</span>
<span>Phillipe Pinel is the correct answer.</span>
Answer:
Scientists rarely say that a theory is proven. They will say that whether their the evidence presented supports the theory or not. This is because a scientific theory is subjected to change. Any new evidence found in contradiction to the previous theory will lead to the formation of another theory. Hence, a theory is no proved, it is supported through evidences or experiments.
In contrast, when an evidence is proved it will be subjected to become a scientific law. A scientific law cannot be changed.
The tricuspid valve does this between the right atrium and ventricle. ... At the end of diastole, your heart's atria contract and pump blood into the ventricles. The atria then begin to relax. Next, your heart's ventricles contract and pump blood out of your heart.