1. The release of which one of the following into ponds and wells helps in controlling the mosquitoes?

A. Gambusia Fish

B. Crab

C. Snail

D. Dog Fish

View Answer/Explanation

Correct Answer is A

Gambusia affinis is a larvivorous, which controls the mosquitoes by eating mosquito larvae, insects and crustaceans. 

2. Which of the following is not a digestive enzyme in the human system?

A. Gastrin

B. Ptyalain

C. Trypsin

D. Pepsin

View Answer/Explanation

Correct Answer is A

3. Which among the following is not a good source of nutritional calcium?

A. Ragi

B. Rice

C. Skimmed Milk

D. Egg

View Answer/Explanation

Correct Answer is A

4. The normal temperature of human in Kelvin scale is-

A. 237

B. 286

C. 310

D. 313

View Answer/Explanation

Correct Answer is A

In degree celsius, it is 37. So 273+37 = 310

5. Which one of the following is a membrane that protects the developing embryo from desiccation?

A. Chorion

B. Amnion

C. Allantois

D. Yolk Sac

View Answer/Explanation

Correct Answer is B

Amnion protects by a fluid filled space called amniotic cavity.

6. The major chemical compound found in kidney stones is-

A. Urea

B. Calcium Oxalate

C. Calcium Carbonate

D. Calcium Sulphate

View Answer/Explanation

Correct Answer is B

7. In the eye donation which part of the eye is transplanted from the donor?

A. Cornea

B. Lens

C. Whole Eye

D. Retina

View Answer/Explanation

Correct Answer is A

8. Which of the following elements are present in all proteins?

A. Oxygen

B. Carbon

C. Hydrogen

D. All of these

View Answer/Explanation

Correct Answer is D

9. Among the following which one is not an ape?

A. Orangutan

B. Gibbon

C. Gorilla

D. Langur

View Answer/Explanation

Correct Answer is D

10. How do most insects respire?

A. Through Lungs

B. Through Gills

C. Trachea System

D. None of these

View Answer/Explanation

Correct Answer is C

11. Which of the following hormones contains Iodine?

A. Testosterone

B. Insulin

C. Adrenaline

D. Thyroxine

View Answer/Explanation

Correct Answer is D

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