Answer:
it is the frontal bone The superior bony margin of the orbital rim, otherwise known as the orbital process, is formed by the frontal bone.
Answer: A cactus has needles to prevent animals from eating the water out from it.
Explanation:
I don't know Number 3 so i can't answer.
4. (B) Pulmonary arteries the only artery in the choices that deliver deoxygenated blood.
5. (D) Immunoglobulins are proteins found in blood plasma.
6. (C) Diastolic pressure. I think you meant "relaxes" not "relates"
7. I think the answer is (A) Enzymes. Hormones can also be an answer i think.