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1. Which of the following is generally considered as a primary source of water?

A

Pond

B

Rain

C

Lakes

D

Rivers

2. The common tube in human male for urine and sperm is

A

Uterus

B

Urinary Bladder

C

Ureter

D

Urethra

3. The structural and functional unit of ecology is generally known as

A

Ecosystem

B

Environment

C

Inheritance

D

Adaptation

4. Speciation is defined as the evolutionary process by which

A

Hybird species are formed

B

New and distinct species are formed

C

shows difference in physical traits

D

evolutionary paths converge

5. Vein through which nutrients of the food molecules travels towards heart is called

A

Iliac Vein

B

Portal Vein

C

Hepatic Vein

D

Lateral Vein

6. Which of the following helps in promoting stem elongation in a plant?

A

Auxin

B

Oxalic Acid

C

Abscisic Acid

D

Ethylene

7. The structural and functional unit of nervous system is called a

A

Nephron

B

Neuron

C

Axon

D

Medulla

8. The organism which indicates the faecal contamination of water in the river Ganga of India is

A

Mucor sp

B

Coliform bacteria

C

Amoeba

D

Lactobacillus bacteria

9. Which of the following organisms can live without oxygen of air?

A

Amoeba

B

Sheep

C

Leech

D

Yeast

10. The Chipko Andolan was basically started against

A

deforestration

B

development of new breeds of forest plants

C

zoological survey of India

D

conservation of natural resources

11. Homologous chrosomes which are similar in both the sexes are known as

A

Autosomes

B

Allosomes

C

Sex chromosomes

D

Androsomes

12. In an ecosystem, energy disposal for transfer from one tropic level to the next is in the form of

A

heat energy

B

mechanical energy

C

chemical energy

D

light energy

13. Male harmone is

A

Adrenaline

B

Testosterone

C

Progesterone

D

Oestrogen

14. An example of primary air pollutant among the following is

A

Sulphuric Acid

B

Photochemical smog

C

Ozone

D

Carbon Monoxide

15. Propagules are used to raise

A

New Plants

B

New born animals

C

bacteria

D

Fungi

16. Bowman`s capsule and glomerulus together form the

A

uriniferous tubule

B

renal pelvis

C

renal corpuscle

D

renal medulla

17. What is the role of platelets in a human body?

A

Oxygen transport

B

Carbon Dioxide transport

C

Clotting of blood

D

Giving immunity to the body

18. The chlorophyll in photosynthesis is used for

A

absorbing light

B

splitting water molecules

C

reduction

D

absorbing sound

19. The structure which provides nutrition to the developing foetus is

A

Ovary

B

Fallopian Tube

C

Placenta

D

Seminal Vesicle

20. The testes that is the male reproductive organ in a human body performs which of the following functions?

A

production of sperms only

B

production of testosterone only

C

production of both sperms and progesterone

D

production of both sperms and testosterone