GED Science Practice 2025 - Free GED Science Practice Questions and Study Guide

Question: 1 / 400

What is the definition of gestation?

a segment of DNA that is involved in producing a polypeptide chain

the energy produced by heat within the earth

the period during which an embryo develops (about 266 days in humans)

Gestation refers to the period of time during which an embryo develops inside the womb of a pregnant organism. In humans, this duration is approximately 266 days, counting from conception to birth. This term is crucial in the study of reproductive biology, as it highlights the process of growth and development that occurs before birth.

The other options address completely different concepts. For instance, one option talks about DNA and polypeptide chains, which relates to genetics and molecular biology rather than development during pregnancy. Another option focuses on geothermal energy, which is a topic in Earth science. The final option describes components of gastric juice, which pertains to digestion rather than gestation. Each of these subjects falls outside the scope of fetal development, making them irrelevant to the definition of gestation.

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digestive secretions of the stomach glands consisting chiefly of hydrochloric acid and mucin and the enzymes pepsin and rennin and lipase

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