Most primitive living mammals,which provide evidence of organic evolution through their geographical distribution,are found in:

Which of the following is not a vestigial organ?

Define and explain the following terms: $1$. Analogous organs,$2$. Vestigial or rudimentary organs.

Sweet potato shows analogy with .........

Which of the following human organs are vestigial?

In the evolutionary history of the human heart,it is observed that it passed through a two-chambered heart like that of fish,to a three-chambered heart like that of amphibians,and finally became a four-chambered heart. Which concept is closest to this statement?