List of top Science Questions on Reproduction asked in CBSE Class X

Select the option having correct matching of the organism given in Column I with the mode of reproduction in Column II: Column I {0.2cm}

Assertion (A): In reptiles, the temperature at which the fertilized eggs are kept decides the sex of the offspring.
Reason (R): Sex is not genetically determined in some animals.
In the light of the above statements, choose the most appropriate answer from the options given below:

What changes are observed in the uterus:
(i) Subsequent to the implantation of the zygote and
(ii) If an egg does not get fertilized?

Name the part performing the following functions in the human female reproductive system:
(i) Production of eggs
(ii) Site of fertilization
(iii) Site of implantation
(iv) Entry of the sperms

Why are testes in human males located outside the abdominal cavity in scrotum?

Name the part performing the following functions in the human male reproductive system:
(a) Carries sperm
(b) Production of male gametes
(c) Whose secretion makes the transport of sperm easier
(d) Provides suitable temperature for sperm formation

Water in a pond appears dark green and contains filamentous structures. Name these structures and the method by which they reproduce. Explain the process.

Plants like rose and banana have lost the capacity to produce: