MEDIUM
8th CBSE
IMPORTANT
Earn 100
Which of these is true about external fertilisation and internal fertilisation?
External fertilisation
Internal fertilisation
A
Both parents are necessary
Both parents are necessary
B
Embryo is not formed
Embryo is formed
C
Involves development of eggshell
Involves development of eggshell
D
Takes place among invertebrates
Takes place among vertebrates
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Important Questions on Reproduction in Animals
MEDIUM
8th CBSE
IMPORTANT
The picture shows the basic parts of a salmon fish sperm.
Which part of the sperm helps it to swim in water and reach the egg?
EASY
8th CBSE
IMPORTANT
Which of these animals reproduce by external fertilisation?
MEDIUM
8th CBSE
IMPORTANT
The picture shows the life cycle of a moth.
What can be concluded from the picture?
HARD
8th CBSE
IMPORTANT
The pictures show three types of reproduction in animals.
Which of these statements is true?
HARD
8th CBSE
IMPORTANT
Sets of reproductive terms are given below. Choose the set that has an incorrect combination.
MEDIUM
8th CBSE
IMPORTANT
The reason, why parrot does not belong to the same group as that of monkey, man, cat, is that-
HARD
8th CBSE
IMPORTANT
From the above table identify lifecycle pattern seen in A, B,C
HARD
8th CBSE
IMPORTANT
Read the given statements.
(i) IVF is a treatment for infertility when a woman is able to produce ovum however, problems of the Fallopian tube make fertilisation difficult.
(ii) Asexual reproduction is a rapid and easier method of multiplication.
(iii) Unicellular organisms reproducing by binary fission are referred to as 'immortals' because actual death of the parent does not occur.
(iv) Metamorphosis is the transformation of an adult animal to larval form.
Which of the given statements are correct?
