What is meant by stimulus and reaction?
Stimulus is the change in the environment or environmental factors to to which the organism can respond or react. Theresponse shown by organisms towards or awaya stimulus is called reaction.
Name the hormones produced by the ovaries and write down their function.
The name of hormones produced by the ovaries are:
Oestrogen:
- It controls the devt. of female sex organ.
- It controls the secondary sex characteristics of female.
Progesterone:
- It plays a role in ovulation.
- It helps in the maintenance of pregnancy.