Question

difference between homeologos and analogous organs .
with examples ​

Answer 1

Explanation:

Homologous organs :

Organs such as bat's wing, wings of birds, seal’s flipper, forelimb of a horse, and human arm have a common underlying anatomy that was present in their last common ancestors; therefore their forelimbs are homologous organs.

We can observe that though the shape and the size of the bones are not similar, there is a similarity in their structure that is, they have the same set of bones - humerus, radius, ulna, carpals, metacarpals and phalanges.

Man uses his hands to grasp and perform tasks, whales use their flippers for swimming, bats and birds use their wings for flight and horses use their forelimbs for running.

Analogous organs :

he leaves of opuntia and peepal are analogous organs in plants. In opuntia the stem is modified into a broad succulent leaf like structure that performs photosynthesis like leaves. Peepal leaf is a normal leaf that performs photosynthesis. So both the opuntia and peepal leaves perform common function through photosynthesis, so they are analogous.

Many of the cacti and African euphorbias are similar in appearance, being succulent, spiny, water-storing, and adapted to desert conditions generally. But these two plants belong to different families though they share traits according to the similar environmental conditions they are placed in.

Potato and sweet potato also show similar characteristics, but have different origins. Potato is a modified stem meant for storage of food. Sweet potato is a modified root also meant for the storage of food, so they are analogous.