B. Macromolecules is the answer.
<span> Eukarya
because it is made up of eukaryotic cells
</span>
Answer:
Tricuspid valve: Allows blood to pass from the right atrium to the right ventricle; prevents blood from flowing back into the right atrium as the heart pumps (systole).
Explanation:
Potassium and can be obtained by eating avocados, acorn squash, sweet potato, spinach etc..