The Ultimate Source of Genetic Differences Among Species Is

question 49

Multiple Choice

The ultimate source of genetic differences among species is:

• A)mutation.
• B)natural selection.
• C)the inheritance of acquired characteristics.
• D)polygenic inheritance.

---

Definitions:

Preconceptual Phase

A stage prior to conception, focusing on health and behaviors that can influence the well-being of a future pregnancy and offspring.

Cognitive Development

The process of growth and change in intellectual abilities such as thinking, reasoning, and understanding.

Developmental Task

A task which is expected to be accomplished during a particular stage of life, contributing to the successful development of an individual.

Havighurst

Refers to Robert Havighurst, an American psychologist and educator known for his theories on human development and aging.