Convection keeps the earths surface warm
Answer:
D) sun's core
Explanation:
Let me know if this helps :)
Answer: the cell theory is all living things are made of cells, and cells create other cells.
Explanation: so basically there were these dudes who studied plants and animals, and one of them looked at animal tissue and saw cells. this leads to the theory that all living things are made of cells. hope this helps.
Deductive reasoning is the step in biological methods,in which already well known scholars and scientists check the validity of proposed theory,they ensure that 100% accuracy is taken into account,for better result of new discoveries.
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.