Class 8 Reproduction In Animals CBSE Questions & Answers

Class 8 · Reproduction In Animals

This is Science Class 8 Reproduction in Animals CBSE Questions & Answers. There are 15 questions in this test with each question having around four answer choices.

Questions & Answers

1
What is the number of sperms released in vagina in single insemination?
  • A
    200 millions
  • B
    100 millions
  • C
    800 millions
  • D
    400 millions
    Correct
2
External genitalia of human female is called as
  • A
    Uterus
  • B
    Vulva
    Correct
  • C
    Vagina
  • D
    Cervix
3
Which one is not correct about the function of placenta?
  • A
    Release progesterone hormone
    Correct
  • B
    Release HCG hormone
  • C
    Help in respiration
  • D
    Help in nutrition
4
The secretory phase of in the human menstrual cycle is called as
  • A
    Follicular phase
  • B
    Proliferative phase
  • C
    Luteal phase
    Correct
  • D
    Ovulation phase
5
Phenomenal and rapid increase of population in a short period is called
  • A
    Population enhancement
  • B
    Population growth
  • C
    Population explosion
    Correct
  • D
    Natural growth
6
Copper-T prevents from
  • A
    STD
  • B
    Fertilisaion
    Correct
  • C
    Ovulation
  • D
    Attachment of fertilised ovum
7
Two hormones that regulate the menstrual cycle are
  • A
    Oestrogen and FSH
  • B
    FSH and oestrogen
  • C
    Estrogens and progesterone
    Correct
  • D
    Estrogens and oestrogen
8
The opening of vagina is often covered partially by a membrane called
  • A
    Hyemen
    Correct
  • B
    Urethral opening
  • C
    Labia manora
  • D
    Clitoris
9
Reproduction is essential life processes which help in
  • A
    Continuity of race
  • B
    Change in size
  • C
    Change in habitat
  • D
    Remain alive
    Correct
10
Which of the following organism do shows binary fission
  • A
    Euglena
  • B
    Paramecium
  • C
    Amoeba
    Correct
  • D
    Plasmodium
11
Fertilisation is external in
  • A
    Reptiles and fish
  • B
    Fish and amphibians
    Correct
  • C
    Birds and fish
  • D
    Amphibian and birds
12
Hydra reproduce asexually by formation of
  • A
    Sporulation
  • B
    Fragmentation
  • C
    Budding
    Correct
  • D
    Binary fission
13
The living organism can be unexceptionally differ from non-living on the basis of
  • A
    Response to touch
  • B
    Reproduction
  • C
    Interaction with environment and evolution
    Correct
  • D
    Growth and movement
14
All organism reproduce sexually after certain growth and maturity. That period of growth is called
  • A
    Growth phase
    Correct
  • B
    Juvenile phase
  • C
    Flowering phase
  • D
    Reproductive phase
15
In non-primitive mammals like cow, sheep, rats, dogs etc., such cyclical changes during reproduction are called
  • A
    Growth cycle
  • B
    Oestrus cycle
    Correct
  • C
    Gestation period
  • D
    Menstrual cycle