NEET BIOLOGY

GENETICS AND EVOLUTION

EVOLUTION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Scientists compare organisms’ anatomy and DNA to support the theory that species share common ____ (section 1)
A
separation
B
populations
C
ancestors
D
environments
Explanation: 

Detailed explanation-1: -DNA and the genetic code reflect the shared ancestry of life. DNA comparisons can show how related species are. Biogeography. The global distribution of organisms and the unique features of island species reflect evolution and geological change.

Detailed explanation-2: -Today’s scientists compare the anatomy, embryos, and DNA of modern organisms to understand how they evolved. Homologous structures are structures that are different in related organisms because they were inherited from a common ancestor.

Detailed explanation-3: -Anatomical Evidence For Evolution The primary evidence scientists saw of the evolutionary development of species came from examining anatomical similarities between organisms. Scientists compared similarities in the anatomical features, or body structures, of related species.

Detailed explanation-4: -Comparative anatomy is an important tool that helps determine evolutionary relationships between organisms and whether or not they share common ancestors. However, it is also important evidence for evolution. Anatomical similarities between organisms support the idea that these organisms evolved from a common ancestor.

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