What is the study of fossils called?

Select the correct statement.

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

Flippers of Penguins and Dolphins are examples of:

Assertion: Comparative biochemistry provides strong evidence in favour of the common ancestry of living beings.
Reason: The genetic code is universal.

When we talk of functional macromolecules (e.g.,proteins as enzymes,hormones,receptors,antibodies,etc.),towards what are they evolving?