The history of development of an individual organism during its lifetime is called what?

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Study for the ABA SAFMEDS Exam with comprehensive flashcards and challenging multiple choice questions. Each question offers hints and detailed explanations. Ensure your readiness for the exam day!

Multiple Choice

The history of development of an individual organism during its lifetime is called what?

Explanation:
Ontogeny is the history of development of an individual organism during its lifetime. It covers how a fertilized egg grows, differentiates, and matures into an adult, including changes from infancy through aging. This term is specifically about the life-long development of a single organism. Phylogeny, by contrast, refers to the evolutionary history of a species or higher taxonomic groups over many generations. Evolution describes the process of heritable change in populations across generations. Philosophy is unrelated to biological development. So ontogeny best fits the description because it directly names the development of an individual organism over its lifespan.

Ontogeny is the history of development of an individual organism during its lifetime. It covers how a fertilized egg grows, differentiates, and matures into an adult, including changes from infancy through aging. This term is specifically about the life-long development of a single organism.

Phylogeny, by contrast, refers to the evolutionary history of a species or higher taxonomic groups over many generations. Evolution describes the process of heritable change in populations across generations. Philosophy is unrelated to biological development.

So ontogeny best fits the description because it directly names the development of an individual organism over its lifespan.

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