Biology

Question 1

1The number of individuals of one species living in an area is the

Easy

A. ecosystem B. population C. community D. biome

Question 2

2Which organelle would be most abundant in muscle cells?

Hard

A. cell walls B. chloroplasts C. mitochondria D. vacuoles

Question 3

3Which substance is NOT normally found in glomerular filtrate?

Easy

A. urea B. glucose C. water D. red blood cells

Question 4

4The structure that nourishes the foetus in the uterus is the

Easy

A. cervix B. amnion C. vagina D. placenta

Question 5

5River blindness is caused by a

Easy

A. virus B. nematode worm C. fungus D. bacterium

Question 6

6Fertilisation in humans normally takes place in the

Easy

A. ovary B. uterus C. oviduct (fallopian tube) D. vagina

Question 7

7A pyramid of energy is always

Medium

A. irregular B. circular C. inverted D. upright

Question 8

8Boiling does not affect enzymes.

Easy

A. True B. False

Question 9

9The fossil record shows

Easy

A. only recent species B. no changes C. changes in organisms over time D. only plants

Question 10

10Conversion of ammonia to nitrates is ___.

Easy

Your answer (fill in the blank)

Question 11

11The disease caused by lack of insulin is ___.

Easy

Your answer (fill in the blank)

Question 12

12Absorption of food mainly occurs in the stomach.

Easy

A. True B. False

Question 13

13The sea is a store of dissolved carbon dioxide.

Easy

A. True B. False

Question 14

14Which factor can denature an enzyme?

Easy

A. high temperature B. water C. oxygen D. a sugar

Question 15

15A cell that has lost water and shrunk away from the wall is ___.

Easy

Your answer (fill in the blank)

Question 16

16The organ that regulates water and salt level in blood is the

Easy

A. liver B. skin C. kidney D. lung

Question 17

17The structure that detects sound vibrations in the ear is the

Easy

A. semicircular canal B. eustachian tube C. cochlea D. pinna

Question 18

18Two parents with blood groups A and B can have a child with group O.

Medium

A. True B. False

Question 19

19Insects have an endoskeleton.

Easy

A. True B. False

Question 20

20The type of cell division that produces gametes is

Easy

A. mitosis B. budding C. binary fission D. meiosis