Write a note on sense organs.

SENSE ORG4NS OF FROG:

Organisms like frogs have receptor or sense organs to get information about the environment. They are as under:

(1) Skin: 

It has different sensory nerve endings. Those that are located in the epidermis as free nerve endings sense temperature changes by thermoreceptors, which are important in body temperature homeostasis. They are also believed to sense pain and light touch. 

(2) Nose:

To detect smell, the olfactory cells are present in the nostril. The olfactory sensory cells may have minute hairs to receive the stimulus. TI-1 .animal with the most acute sense of smell is the male emperor moth. Using its antennae, it can detect a female emperor moth 11 km upwind. 

(3)Tongue:

Sensory cells. called gustatory cells. are grouped together in taste buds located in grooves in the tongue mucous membrane.
 Different tastes can be detected by these cells, e.g. sweet, sour, bitter or saltish.

Ear:

An ear is the sense organ for hearing and maintaining balance of the
body.

Eye:

 An eye is the organ of sight. Thus the five sense organs include: skin for touch, nose for smell, tongue for taste, ear for hearing and eye for seeing,