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Question 27 27Which of the following characteristics are shared by all primates at maturity? Group of...

Question 27

27Which of the following characteristics are shared by all primates at maturity?

Group of answer choices

1-opposable fifth digits (thumbs)

2-a post anal tail

3-bipedalism

4-arboreal (tree-living) life style

Question 28

28-In mammals, after blood leaves the lungs, which chamber of the heart does it return to?

Group of answer choices

1-left ventricle

2-right ventricle

3-left atrium

4-right atrium

5-posterior air sacs

Expert Solution

Question 27 :-

The right option is Option (1) Opposable fifth digit

Explanation :-

Not all the primates have tail. Only the New world monkeys and Old world monkeys (With exception of Barbary macaque) have tails. On the other hand, Apes do not have a tail which include us, human too.

In terms of bipedalism even though all the primates can have bipedalism but only humans have it on a level where everyone perform it.

Not all primates live in the tree as humans live in houses and they are adapted to that.

Question 28 :-

The right option is Option (3) Left Atrium

Explanation :-

The role of Left ventricle is to pump the oxygenated blood to every part of our body. It receives that oxygenated blood from left atrium which in turn gets it from lungs.

Role of right ventricle is to pump the deoxygenated blood from the heart to the lungs so that it can get oxygenated.

Right atrium receives deoxygenated blood from the body and this is pushed into right ventricular.

gladiator answered 2 years ago

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