Which of the following actions does not occur during exhalation in man?
Thoracic cavity decreases in volume
Diaphragm flattens
Ribs move down and in
Air pressure increases in the thoracic cavity
Correct answer is B
When you inhale, your diaphragm tightens and moves downward (flattens).
The diagram above illustrates the transverse section of a
dicotyledonous root
monocotyledonous root
dicotyledonous stem
monocotyledonous stem
Correct answer is C
The diagram shows the transverse section of a dicotyledonous stem showing its tissue distribution.
I
II
III
IV
Correct answer is C
The triceps are large muscles on the back of the upper limb of many vertebrates. The part III is a part of the bone that forms the triceps.
I
II
III
IV
Correct answer is B
The part II is attached to the humerus. It forms a hinge joint to make up the hand.
The diagram above illustrates a part of the human skeleton. It represents the bones of the
upper arm
lower arm
upper leg
lower leg
Correct answer is B
The diagram shows the lower arm which can be seen between the elbow and the wrist.
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