What Are the Major Teratogens During the Fetal Period

question 285

Multiple Choice

What are the major teratogens during the fetal period?

• A)lack of maternal sleep and lack of exercise
• B)excessive maternal weight gain and maternal age
• C)malnutrition and tobacco
• D)sugar and starch

---

Definitions:

Testable Explanation

A hypothesis or theory that can be put to the test, designed to explain phenomena in the natural world.

Hypothesis

An initial hypothesis put forward to explain a phenomenon that serves as a basis for further study and can be verified by experimental and observational means.

Scientific Theory

A well-substantiated explanation of some aspect of the natural world, based on a body of evidence and repeatedly tested hypotheses.

Testable Explanation

A hypothesis that can be supported or refuted through experimentation or observation.