Archaeopteryx is a connecting link between which of the following?

Which of the following is responsible for the evolution of endemic species in South America and Australia?

Select the correct option for the structures $P$ and $Q$ shown below.

In the past,the age of fossils was typically determined using the radiocarbon method and other techniques involving radioactive elements found in rocks. What are the more precise methods currently used that lead to the revision of evolutionary periods for various groups of organisms?

Appearance of ancestral characters in the newborns,such as tail,monstral face,gill slits,multiple mammae,etc.,are known as:

How is the age of fossils calculated?