Which one of the following includes all homologous organs?

Question

Which one of the following includes all homologous organs? (A) The wing of butterfly, wing of bird, wing (patagia) of bat. (B) The fore limb of frog, wing of bird and fore limb of rabbit. (C) The thoracic leg of cockroach, the hind leg of frog and fore leg of rabbit. (D) The wing of bird, wing of bat and wing of "flying" lizard.

Tardigrade Admin · Accepted Answer

Homologous organs are the organs having similar structural plan and origin but performing different functions. Analogous organs perform a similar function but have different structural and developmental origin, e.g., wings of birds, bats and insects are analogous organs.

Q. Which one of the following includes all homologous organs?

The wing of butterfly, wing of bird, wing (patagia) of bat.

The fore limb of frog, wing of bird and fore limb of rabbit.

The thoracic leg of cockroach, the hind leg of frog and fore leg of rabbit.

The wing of bird, wing of bat and wing of "flying" lizard.

Homologous organs are the organs having similar structural plan and origin but performing different functions. Analogous organs perform a similar function but have different structural and developmental origin, e.g., wings of birds, bats and insects are analogous organs.