Probably too late answering this.
I don't know if they gave you answer choices, but something like:
"The way the earth is tipped on its axis in the summer has the Northern Hemisphere most closely angled to face the sun"
is what I would say.
Answer:
Are small vessels within the tunica externa of large arteries and veins. (Ans E).
Explanation:
Vasa vasorum: It is defined as a complex system of small blood vessels that helps to provide the larger arteries and veins' walls. It is 3 different types in structure:
1) Internae: It is obtained from the artery lumen and later divide into the vessel wall.
2) Externae: It is obtained from the artery branches.
3) Vasorae: It is obtained within the artery vessel wall then leave into the lumen.
Vasa vasorum helps to provide nourishment which is necessary for growth and supply of blood for tunica media of large vessels and tunica adventitia.
Answer:d
Explanation:i hope this would help
Polymers are defined as large molecules assembled from smaller, individual molecules.
Answer: B)