Question

Explain with an example.
(a) Homologous organs
(b) Analogous organs
(C) Fossils​

Answer 1

Answer:

a) Homologous organs are those organs which have the same structure and embryonic origin but perform the different functions. ... b) Analogous organs are those organs which have the different embryonic origin but perform the similar function. For example, wings of a bird and wings of the insect.

Fossils are the remnants of the past organisms which get buried in sedimentary rocks. Different fossils are formed in the different aged rock sediments. The study of fossils existing in the different rock layers indicate the time period when they existed. Thus different life forms have been formed at different times in the history of the earth. Fossils indicate how the evolution took place leading to the formation of complex life forms from simple ones by the gradual process. For example, fossil bird Archaeopteryx is considered as a connecting link between reptiles and birds indicating that birds evolved from reptiles. It shows the presence of characters of both birds and reptiles like the presence of teeth, wing feathers, clawed toes and tail.

Answer 2

Answer:

1. organs which has same origin in structure but perform different actions is known as homologous organs eg. limb of human and frog
2. organs which are different in structure but perform same function is called as analogus organ eg. wings of bat and birds
3. fossils are the remains of impressions of ancient animal eg dinosaur etc
4. PLS PICK ME AS BRAINLYEST I NEED IT TO GET MY NEXT RANK PLS