Biology (NTSE Stage-2 (National-Level) Scholastic-Aptitude & Language Comprehension): Questions 32 - 38 of 63

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Question number: 32

» Biology » Plant and Animal Nutrition

MCQ▾

Question

Which of the following rotation of crops will reduce dependence on the use of chemical fertilizers?

Choices

Choice (4) Response

a.

Rice and chilly

b.

Gram and rice

c.

Potato and rice

d.

Wheat and potato

Question number: 33

» Biology » Plant and Animal Nutrition

MCQ▾

Question

Bulliform cells are present in

Choices

Choice (4) Response

a.

Lower epidermis of monocot leaves

b.

Upper epidermis of monocot leaves

c.

Upper epidermis of dicot leaves

d.

Dicot stem

Question number: 34

» Biology » Diversity in Living Organisms

MCQ▾

Question

In the absence of his tone proteins in prokaryotes, the an ionic charges of each inter nucleotide phosphate in DNA is neutralized by

Choices

Choice (4) Response

a.

Polysaccharides

b.

Glycolipids

c.

Polyamines

d.

Phospholipids

Question number: 35

» Biology » Reproduction

MCQ▾

Question

The most essential organ for fertilization is

Choices

Choice (4) Response

a.

Green sepals

b.

Mature ovule

c.

Colored petals

d.

Juicy fruit

Question number: 36

» Biology » Plant and Animal Nutrition

MCQ▾

Question

One of the most resistant known biological materials is

Choices

Choice (4) Response

a.

Lignin

b.

Sporopollenin

c.

Lignocellulose

d.

Hemicellulose

Question number: 37

» Biology » Reproduction

MCQ▾

Question

Seeds are called the products of sexual reproduction due to

Choices

Choice (4) Response

a.

It can survive for longer periods

b.

It gives rise to new plants

c.

Formation by fusion of pollen tubes

d.

Are formed by fusion of gametes

Question number: 38

» Biology » Human Body

MCQ▾

Question

Which one of the following is called pacemaker of the heart?

Choices

Choice (4) Response

a.

AV septum

b.

Chordae tendinae

c.

AV node

d.

SA node

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