MEDIUM
8th CBSE
IMPORTANT
Earn 100

A female ovary produces one ovum at a time every month. This implies that not more than one zygote can be formed at a time. How are twins produced then? Also, find out why some twins are identical and some are not.

Important Questions on Reproduction in Animals

EASY
8th CBSE
IMPORTANT
Expanded Universal Science>Chapter 9 - Reproduction in Animals>TRACK YOUR PROGRESS>Q 1
_____ is the process by which organisms produce young ones of their own kind. (Reproduction/Respiration)
EASY
8th CBSE
IMPORTANT
Expanded Universal Science>Chapter 9 - Reproduction in Animals>TRACK YOUR PROGRESS>Q 1
Hydra is a unicellular organism that reproduces by _____.
EASY
8th CBSE
IMPORTANT
Expanded Universal Science>Chapter 9 - Reproduction in Animals>TRACK YOUR PROGRESS>Q 1
Amoeba reproduces asexually by _____ (binary fission/fragmentation).
EASY
8th CBSE
IMPORTANT
Expanded Universal Science>Chapter 9 - Reproduction in Animals>TRACK YOUR PROGRESS>Q 1
Zygote undergoes cellular division and develops into _____.
EASY
8th CBSE
IMPORTANT
Expanded Universal Science>Chapter 9 - Reproduction in Animals>TRACK YOUR PROGRESS>Q 1
Organisms that produce both male and female gametes in the same body are called _____. (monoecious/ hermaphrodites)
EASY
8th CBSE
IMPORTANT
Expanded Universal Science>Chapter 9 - Reproduction in Animals>TRACK YOUR PROGRESS>Q 2
A zygote is formed in the oviduct of a female. 
EASY
8th CBSE
IMPORTANT
Expanded Universal Science>Chapter 9 - Reproduction in Animals>TRACK YOUR PROGRESS>Q 2
In human beings, the gestation period is about 280 days.
EASY
8th CBSE
IMPORTANT
Expanded Universal Science>Chapter 9 - Reproduction in Animals>TRACK YOUR PROGRESS>Q 2
A test-tube baby fully grows in a laboratory.