安裝中文字典英文字典辭典工具!
安裝中文字典英文字典辭典工具!
|
- Teratogen | Definition, Exposure Examples - Lesson - Study. com
Teratogens were first defined in 1832 by Isidore Geoffroy Saint-Hilaire, a French physician Saint-Hillaire studied birth defects in chickens, subjecting eggs to various traumas and environmental
- Quiz Worksheet - Teratogen in Pregnancy | Study. com
To learn more about teratogens, review the corresponding lesson titled Teratogen in Pregnancy: Definition, Exposure Examples The lesson covers these objectives:
- Which of the following statements is true of the impact of teratogens . . .
B Exposure to teratogens does more damage when it occurs at some points of development than at others C Very few fetuses are exposed to teratogens, so it is easy to determine which teratogen causes which defect D Teratogens cause anatomical defects only after organogenesis is complete E Teratogens can only be transmitted through pregnant
- Explain how the effects of teratogens are due to nurture and not nature.
Teratogens are agents that cause birth defects Examples of teratogens are alcohol, drugs, and other
- Which of the following is NOT a teratogen? a. Alcohol. b. Zika virus. b . . .
Teratogens: Teratogens are substances that can harm the development of an embryo Pregnant mothers are often advised against exposing themselves to many chemicals and substances that can damage their baby Stress can even be classified as a teratogen because of the effects it can have on an embryo or fetus Answer and Explanation:
- Which of the following is true about the harm done by teratogens? a . . .
Teratogens: Jim Wilson was the first scientist to propose the principles of teratology Apart from humans, the study of teratology is also applicable to plants According to reports, about 510,000 die due to congenital disorders all around the world Answer and Explanation: 1
- The effects of teratogens depend on when the fetus is exposed, a . . .
Chemicals that can cause birth defects are called a biohazards b amniocentesis c teratogens d biochemists; A child born premature that lives has most likely \rule{1in}{ 2mm} A not been exposed to any teratogens B been exposed to a teratogen C spent at least 24 weeks inside the womb D not developed a complete bone structure
- Which statement below regarding teratogens is correct? a. They only . . .
Teratogens: A teratogen is a substance or agent that causes an embryo to develop incorrectly after exposure Examples of teratogens are thalidomide (no longer used to treat morning sickness because of its known effects), lead, and alcohol or other drugs Fetuses are most vulnerable in the first half of pregnancy Answer and Explanation: 1
|
|
|