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Bio 150 Exam 4 questions and answers certified 2024
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Bio 150 Exam 4 questions and answers certified 2024
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Bio 150 Exam 4: Chapter 42 Questionswith complete solution (6 pgs)
What is the purpose of a circulatory system? - correct answer ✔Transport
materials such as O2, CO2, wastes, and minerals.
Open circulatory system? - correct answer ✔The vessels are open at the
end. Liquid not completely enclosed.
Most invertebrates tend to have what kind of circulatory system? - correct
answer ✔Open circulatory system
What is the liquid in a open circulatory system called? - correct answer
✔Hemolymph. Clear, pus-like liquid.
Closed circulatory system? - correct answer ✔There are no holes in the
vessels. Liquid is completely enclosed.
Most vertebrates tend to have what kind of circulatory system? - correct
answer ✔Closed circulatory system. Some invertebrates too!
What is the liquid inside a closed circulatory system called? - correct answer
✔Blood.
Blood is composed of? - correct answer ✔55% plasma and 45% cells.
What is the most common cell found in the blood? - correct answer ✔Red
blood cells.
, A closed circulatory system in vertebrates is called? - correct answer ✔A
cardiovascular system.
The chambers of the heart that receive blood are called? - correct answer
✔Atria.
The chambers of the heart where blood exits are called? - correct answer
✔Ventricles.
What is an artery? - correct answer ✔A vessel that pumps blood away from
the heart.
What is a vein? - correct answer ✔A vessel that pumps blood toward the
heart.
What is an arteriole? - correct answer ✔Smaller vessels that pump blood
from a artery to the capillaries.
What is a venule? - correct answer ✔Smaller vessels that pump blood from
capillaries to the vein.
What are capillaries? - correct answer ✔Extremely thin and small blood
vessels. Site of gas and mineral exchange.
As blood gets farther away from the heart, what happens to the blood
pressure? - correct answer ✔Decreases. Osmotic pressure stays the same.
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