Which of the following is the most acceptable method determining the age of recent fossils
(b) Radioactive carbon ${C^{14}}$ has a shorter half life period. This carbon is present in all the fossils.
The first life on earth came in water and evidences indicate that life orginated in one of the following eras
Gill clefts and notochord appear in the embryonic development of all vertebrates from fishes to mammals. This supports the theory of
Replacement of original hard parts or even the soft tissues of the organisms by minerals is known as
According to Hardy-Weinberg principle, difference in the values of measured and expected allelic frequencies indicates all of the following, except
Sibling species are also known as
