Question

How have scientist started to study relationships between different groups of organisms?

A. by watching how the different organisms interact with each other
B. by stating how they mate
C. by using genetic analyses
D. by studying the organisms in their natural habitat

Answer 1

The scientist started to study relationships among various groups of organisms C. by using genetic analyses.

Step-by-step explanation:

The following features were used to study about the relationships between different groups of organism:

• External morphology
• Similarities in structure
• Genetic analysis
• Chemical composition

The molecular similarities in the structure of RNA, DNA, and proteins help to establish the relationship of relationships between different groups of organisms. This was studied through testing the samples obtained by organisms using genetic analyses.