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Answers
Answer:
1)fish.
3)pulmanory artery
4) capillaries
5)I think it is (d).
I'm sorry I don't know (2)
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Qn1. Option a)fish.
Qn 2.The cardiovascular system is composed of two circulatory paths: pulmonary circulation, the circuit through the lungs where blood is oxygenated; and systemic circulation, the circuit through the rest of the body to provide oxygenated blood.
Qn3. Arteries carry oxygenated blood away from the heart to the tissues, except for pulmonary arteries, which carry blood to the lungs for oxygenation (usually veins carry deoxygenated blood to the heart but the pulmonary veins carry oxygenated blood as well). There are two types of unique arteries.
Qn4. Option D) cappilaries
Qn 5. a)Though it has four parts, the heart of a fish is considered two-chambered. Unlike humans, the four parts of a fish heart do not form a single organ. ... While arteries carry oxygenated blood from the gills to the rest of the body, veins return deoxygenated blood from different parts of the body to the heart.
b)sorry dont know the answer:(
c)All reptiles, with the exception of crocodiles, have a three chambered heart – two auricles and one ventricle. This type is more advanced than that of fish, but not as advanced as that possessed by mammals. ... Deoxygenated blood enters the right atrium and moves into the right sub chamber of the ventricle.
d)sorry dont know the answer;(
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