NEET (NTA)-National Eligibility cum Entrance Test (Medical) Biology: Questions 71 - 74 of 3511

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Question number: 71

» Diversity in Living World » Five Kingdom Classification » Plant Group - Pteridophytes

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Question

Pteridophytes are characterized by

Choices

Choice (4)Response

a.

Presence of vascular system.

b.

Absence of flowers.

c.

Absence of fruits.

d.

All a. , b. and c. are correct

Question number: 72

» Human Physiology » Neural Control and Coordination » Chemical Coordination and Regulation

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Question

According to the accepted concept of hormone action. If receptor molecules are removed from target organs

Choices

Choice (4)Response

a.

The target organ will continue to respond to the hormone but will require higher concentration.

b.

The target organ will continue to respond to the hormone but in the opposite way.

c.

The target organ will continue to respond to the hormone without any difference.

d.

The target organ will not respond to the hormone

Question number: 73

» Human Physiology » Neural Control and Coordination » Generation and Conduction of Nerve Impulse

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Question

When a neuron is stimulated to generate nerve impulse, the electrical potential on the inside of the nerve membrane changes

Choices

Choice (4)Response

a.

From positive to negative and back positive.

b.

From negative to positive and remains positive.

c.

From negative to positive and back to negative.

d.

From positive to negative and remains negative

Question number: 74

» Diversity in Living World » What is Living? » Need for Classification

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Question

Classification given by Bentham and Hooker is

Choices

Choice (4)Response

a.

natural

b.

artificial

c.

numerical

d.

phylogenetic

Developed by: