Differentiate homologs organs and analogous organs.
Answers
Similar traits can be either homologous or analogous. Homologous structures share a similar embryonic origin; analogous organs have a similar function. For example, the bones in the front flipper of a whale are homologous to the bones in the human arm. These structures are not analogous.
Answer:
HOMOLOGOUS ORGANS ANALOGOUS ORGANS
1. They differ morphologically. 1. They show a superficial resemblance.
2. They have a similar internal structure. 2. Their internal structure is quite different.
3. They develop in related organisms. 3. They develop in unrelated organisms.
4. Stages in the development are similar. 4. Stages in the development are different.
5. They perform different functions. 5. They have similar functions.
6. They have a similar developmental pattern. 6. They have the dissimilar developmental pattern.
7. Homologous organs show adaptive radiation (divergent evolution). 7. Analogous organs show convergent evolution.
8. For example, The arm of a human, the wing of a bird or a bat, the leg of a dog and the flipper of a dolphin or whale are homologous structure. 9. For example, analogous structures range from wings in flying animals like bats, birds, and insects, to fins in animals like penguins and fish.