MEDIUM
8th CBSE
IMPORTANT
Earn 100

Draw a labelled diagram of the human sperm. What makes the sperm mobile?

Important Questions on Reproduction in Animals

MEDIUM
8th CBSE
IMPORTANT
Expanded Universal Science>Chapter 9 - Reproduction in Animals>ASSESSMENT ZONE>Q H
Draw a labelled diagram of the male reproductive system in humans.
MEDIUM
8th CBSE
IMPORTANT
Expanded Universal Science>Chapter 9 - Reproduction in Animals>ASSESSMENT ZONE>Q H
Make a flow chart to highlight the key events in the life cycle of a frog. In what ways is the tadpole different from the adult frog?
MEDIUM
8th CBSE
IMPORTANT
Expanded Universal Science>Chapter 9 - Reproduction in Animals>ASSESSMENT ZONE>Q H
Draw the diagram of the female reproductive system in humans and label the following:
a. Place of embryo development
b. Site of fertilisation
c. Site of embryo implantation
d. The organ that produces the female gamete
MEDIUM
8th CBSE
IMPORTANT
Expanded Universal Science>Chapter 9 - Reproduction in Animals>ASSESSMENT ZONE>Q H
How does the technique of IVF help childless couples to get children?
EASY
8th CBSE
IMPORTANT
Expanded Universal Science>Chapter 9 - Reproduction in Animals>ASSESSMENT ZONE>Q H
Explain the term fertilisation. Describe the process of fertilisation in human beings.
EASY
8th CBSE
IMPORTANT
Expanded Universal Science>Chapter 9 - Reproduction in Animals>ASSESSMENT ZONE>Q H
Why are not all animals oviparous? Does being viviparous offer any advantage to organisms?
MEDIUM
8th CBSE
IMPORTANT
Expanded Universal Science>Chapter 9 - Reproduction in Animals>ASSESSMENT ZONE>Q H
The zygote is a single cell and a human adult has about 100 trillion cells. Approximately how many divisions should the zygote undergo to form the adult, considering the fact that one cell division leads to the formation of two cells?
MEDIUM
8th CBSE
IMPORTANT
Expanded Universal Science>Chapter 9 - Reproduction in Animals>ASSESSMENT ZONE>Q H
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.