Name the process/term for the following statements:
The cells of retina which differentiate colours.
Cone cells.
Name the process/ term for the following statements:
The photosensitive pigments present in the rod cells of the retina.
Name the process/term for the following statement:
The cells of the testes that produce male hormones.
Name the process/term for the statements given below.
(b) The cells which control the opening and closing of stomata.