NSO Level 1- Science Olympiad (SOF) Class 12: Questions 70 - 75 of 106

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Question 70

Question

MCQ▾

The diagram shows a food chain.

At which level does energy from the Sun enter the food chain?

Source of Energy

Choices

Choice (4)Response

a.

Gulls

b.

Seaweed

c.

Starfish

d.

Limpets

Question 71

Question

MCQ▾

The diagram shows the flow of energy in a food chain.

Which organism is the producer in the food chain?

Food Chain

Choices

Choice (4)Response

a.

Organism A

b.

Organism D

c.

Organism C

d.

Organism B

Question 72

Question

MCQ▾

Which is a sudden change in gene or chromosomes?

Choices

Choice (4)Response

a.

Genotype

b.

Allele

c.

Mutation

d.

Genetic drift

Question 73

Question

MCQ▾

There are many reasons why a woman does not become pregnant.

What can be treated by a drug that increases the secretion of FSH?

Choices

Choice (4)Response

a.

Fertilization not occurring

b.

Low sperm count

c.

Follicles not developing

d.

Fallopian tube blocked

Question 74

Question

MCQ▾

The diagram shows the female reproductive system.

The Diagram Shows the Female Reproductive System

What is the function of the part labelled Z?

Choices

Choice (4)Response

a.

Gamete production only

b.

Enzyme production

c.

Gamete production and hormone secretion

d.

Hormone secretion only

Question 75

Question

MCQ▾

The diagram is showing Human sperm.

The Diagram is Showing Human Sperm

Which part of Human sperm helps in dissolving the membrane of egg?

Choices

Choice (4)Response

a.

B diagram

b.

A diagram

c.

C diagram

d.

D diagram

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