Which of the following are homologous organs?

Closer evolutionary relationship of humans to chimpanzees,gorillas,and orangutans can be observed by

Analogous organs are the result of which of the following?

State the modifications of forelimb in animals as an example of homology.

Who proposed the fundamental principle of embryonic development?

Choose the correct statements with reference to organic evolution.
$I.$ Flippers of whale and wings of bat exhibit analogy.
$II.$ Wings of butterfly and wings of bird exhibit homology.
$III.$ Organs with dissimilar structure are called analogous organs.
$IV.$ Organs with similar structure and origin are called homologous organs.