The science that accounts for natural differences and resemblances among organisms related by descent is called what?

The science that accounts for natural differences and resemblances among organisms related by descent is called what?

• A. Genetics
• B. Ecology
• C. Anatomy
• D. Biochemistry

Answer: (A)

Genetics explains how traits are passed from parents to offspring and how natural differences and resemblances arise among related organisms. It focuses on heredity, genes, and variation—how alleles influence traits and how processes like inheritance patterns, mutation, and genetic recombination generate diversity within a lineage. This helps us understand why closely related organisms can look similar yet differ in certain features, and why siblings share many traits but aren’t identical. For example, eye color or susceptibility to a trait can track to specific genes and how they are inherited. Other fields focus on different questions: ecology studies interactions with the environment, anatomy looks at body structure, and biochemistry examines chemical processes in living systems.

Genetics explains how traits are passed from parents to offspring and how natural differences and resemblances arise among related organisms. It focuses on heredity, genes, and variation—how alleles influence traits and how processes like inheritance patterns, mutation, and genetic recombination generate diversity within a lineage. This helps us understand why closely related organisms can look similar yet differ in certain features, and why siblings share many traits but aren’t identical. For example, eye color or susceptibility to a trait can track to specific genes and how they are inherited. Other fields focus on different questions: ecology studies interactions with the environment, anatomy looks at body structure, and biochemistry examines chemical processes in living systems.