Extra 40 MCQs from the chapter:6 "Reproduction in Animals" of Class 8 Science CBSE, along with their answers:-

 

Which of the following is the mode of reproduction in amoeba?

 

a) Sexual

 

b) Asexual

 

c) Both a & b

 

d) None of these

 

Ans:

(b) Asexual

 

Which of the following is NOT an example of asexual reproduction?

 

a) Budding

 

b) Binary fission

 

c) Fragmentation

 

d) Fertilization

 

Ans:

(d) Fertilization

 

Which organ produces sperm in male reproductive system?

 

a) Ovaries

 

b) Testes

 

c) Uterus

 

d) Vas deferens

 

Ans:

(b) Testes

 

Fertilization in humans takes place in the:

 

a) Oviduct

 

b) Uterus

 

c) Ovary

 

d) Vagina

 

Ans:

(a) Oviduct

 

Which of the following organisms reproduce by budding?

 

a) Hydra

 

b) Amoeba

 

c) Paramecium

 

d) Earthworm

 

Ans:

(a) Hydra

 

What is the mode of reproduction in frogs?

 

a) Oviparous

 

b) Viviparous

 

c) Budding

 

d) Fragmentation

 

Ans:

(a) Oviparous

 

Which type of fertilization occurs in fish?

 

a) Internal

 

b) External

 

c) Asexual

 

d) Budding

 

Ans:

(b) External

 

What is the function of the placenta?

 

a) Connects mother and embryo

 

b) Helps in excretion

 

c) Helps in movement

 

d) None of these

 

Ans:

(a) Connects mother and embryo

 

What is the name of the process by which an embryo develops into a baby?

 

a) Fertilization

 

b) Zygote formation

 

c) Metamorphosis

 

d) Gestation

 

Ans:

(d) Gestation

 

Which of the following animals is viviparous?

 

a) Frog

 

b) Lizard

 

c) Cow

 

d) Fish

 

Ans:

(c) Cow

 

The process of fusion of male and female gametes is called:

 

a) Budding

 

b) Fertilization

 

c) Fission

 

d) Fragmentation

 

Ans:

(b) Fertilization

 

The larval stage of a frog is called:

 

a) Tadpole

 

b) Caterpillar

 

c) Pupa

 

d) Nymph

 

Ans:

(a) Tadpole

 

Which of the following animals undergoes metamorphosis?

 

a) Humans

 

b) Frog

 

c) Birds

 

d) Cats

 

Ans:

(b) Frog

 

Binary fission occurs in which of the following organisms?

 

a) Hydra

 

b) Amoeba

 

c) Frog

 

d) Cat

 

Ans:

(b) Amoeba

 

What is the male gamete called?

 

a) Ovum

 

b) Embryo

 

c) Sperm

 

d) Zygote

 

Ans:

(c) Sperm

 

What is a zygote?

 

a) A type of bacteria

 

b) A fertilized egg

 

c) A larva

 

d) A reproductive cell

 

Ans:

(b) A fertilized egg

 

Which of these is an oviparous animal?

 

a) Dog

 

b) Rabbit

 

c) Hen

 

d) Elephant

 

Ans:

(c) Hen

 

Which of these reproduces by fragmentation?

 

a) Earthworm

 

b) Hydra

 

c) Amoeba

 

d) Planaria

 

Ans:

(d) Planaria

 

In which of the following animals does external fertilization occur?

 

a) Cow

 

b) Dog

 

c) Frog

 

d) Cat

 

Ans:

(c) Frog

 

Which of the following is a viviparous animal?

 

a) Fish

 

b) Frog

 

c) Human

 

d) Hen

 

Ans:

(c) Human

 

Which organ in the female reproductive system produces eggs?

 

a) Ovaries

 

b) Uterus

 

c) Fallopian tube

 

d) Vagina

 

Ans:

(a) Ovaries

 

Which structure connects the

fetus

to the mother?

 

a) Fallopian tube

 

b) Placenta

 

c) Vagina

 

d) Uterus

 

Ans:

(b) Placenta

 

Which of these animals lays eggs?

 

a) Cat

 

b) Frog

 

c) Dog

 

d) Whale

 

Ans:

(b) Frog

 

Which of these is an example of asexual reproduction?

 

a) Budding in hydra

 

b) Reproduction in humans

 

c) Reproduction in cats

 

d) Reproduction in whales

 

Ans:

(a) Budding in hydra

 

Which of these is a fertilized egg?

 

a) Sperm

 

b) Ovum

 

c) Zygote

 

d)

Fetus

 

Ans:

(c) Zygote

 

Which of these is a method of asexual reproduction?

 

a) Fertilization

 

b) Budding

 

c) Copulation

 

d) Gestation

 

Ans:

(b) Budding

 

What is the process of shedding of the uterine lining in females called?

 

a) Ovulation

 

b) Menstruation

 

c) Fertilization

 

d) Implantation

 

Ans:

(b) Menstruation

 

The gestation period in humans is approximately:

 

a) 3 months

 

b) 6 months

 

c) 9 months

 

d) 12 months

 

Ans:

(c) 9 months

 

Which of these produces both sperm and testosterone?

 

a) Ovaries

 

b) Testes

 

c) Uterus

 

d) Placenta

 

Ans:

(b) Testes

 

What is the function of the umbilical cord?

 

a) Helps in breathing

 

b) Provides nutrients to the baby

 

c) Produces hormones

 

d) None of the above

 

Ans:

(b) Provides nutrients to the baby

 

Which of these is asexual reproduction?

 

a) Fragmentation in Planaria

 

b) Sexual reproduction in humans

 

c) Fertilization in cows

 

d) Reproduction in birds

 

Ans:

(a) Fragmentation in Planaria

 

Which organ is responsible for carrying sperm from testes?

 

a) Vas deferens

 

b) Uterus

 

c) Oviduct

 

d) Placenta

 

Ans:

(a) Vas deferens

 

How many chromosomes are present in a human zygote?

 

a) 23

 

b) 46

 

c) 44

 

d) 22

 

Ans:

(b) 46

 

Which reproductive organ carries the embryo during pregnancy?

 

a) Ovaries

 

b) Fallopian tube

 

c) Uterus

 

d) Placenta

 

Ans:

(c) Uterus

 

36. Which of the following statements about sexual reproduction is true?

a) It involves only one parent
b) It does not involve gametes
c) It results in offspring that are genetically different from parents
d) It produces identical offspring
Ans: (c) It results in offspring that are genetically different from parents

 

37. What is the function of the amniotic fluid surrounding the embryo?

a) It provides oxygen
b) It provides nutrients
c) It protects the embryo from shocks
d) It helps in fertilization
Ans: (c) It protects the embryo from shocks

 

38. In which of the following organisms does external fertilization take place?

a) Humans
b) Dogs
c) Fish
d) Elephants
Ans: (c) Fish

 

39. The release of a mature egg from the ovary is called:

a) Menstruation
b) Fertilization
c) Ovulation
d) Gestation
Ans: (c) Ovulation

 

40. Which of the following reproductive methods involves the splitting of an organism into two equal halves?

a) Budding
b) Binary fission
c) Fragmentation
d) Regeneration
Ans: (b) Binary fission