Francis Crick: helped in the development of helical diffraction theory which was helpful in the understanding of the structure of dna, he also worked with James Watson in discoveries the double helix structure of dna. He also demonstrated that a group of three nucleotide bases on a single dna strand code for one specific amino acid.
Rosalind Franklin: using the x- ray diffraction created images of dna, which was later used by Watson and crick to determine the structure of dna.
James Watson: he helped deduce the structure of dna, along with crick.
Maurice Wilkins: it was his idea to use X-ray crystallography techniques to study dna.
The role is to build up water with its dam to create a lake thus creating parts of the ecosystem it is also food for some animals.
Answer:
Option B, Mammals and reptiles in the post-dinosaur age.
Explanation:
Adaptive radiation is mechanism through which species evolve very fast from common single ancestors. In simple words two different species are said to have evolved through adaptive radiation when they have descended from a single lineage. This is not the case with mammals and reptiles.
Generally in adaptive radiation, a species evolve when it faces new environmental challenges due to change of habitat or area. For example mammals have evolved from dinosaurs.
Hence, option B is correct
