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Prenatal Development and Environmental Influences Quiz

#1

Which stage of prenatal development occurs during the first two weeks after conception?

Germinal stage
Explanation

Initial phase of development

#2

During which trimester does the majority of fetal organ development occur?

Second trimester
Explanation

Organogenesis

#3

During which prenatal stage do the major organs and systems begin to form?

Embryonic stage
Explanation

Organogenesis

#4

What is the term for the process by which cells become specialized in structure and function?

Differentiation
Explanation

Cell specialization

#5

What is the term for the protective membrane that surrounds the developing embryo and fetus?

Amnion
Explanation

Fluid-filled sac

#6

Which of the following is NOT an environmental influence on prenatal development?

Genetic inheritance
Explanation

Inherited traits

#7

What is the term for a cluster of cells that develops within the first two weeks after conception?

Blastocyst
Explanation

Early embryonic structure

#8

Which of the following is a critical period in prenatal development?

The embryonic period
Explanation

Sensitive phase for development

#9

What is the term for the process by which the outer layer of the blastocyst attaches to the uterine wall?

Implantation
Explanation

Attachment to maternal tissue

#10

Which of the following is a common symptom of fetal alcohol syndrome (FAS)?

Low birth weight
Explanation

Reduced infant weight

#11

Which prenatal environmental factor has been linked to an increased risk of neural tube defects?

Folic acid deficiency
Explanation

Lack of essential nutrient

#12

Which of the following is a teratogen known to cause physical abnormalities in developing fetuses?

Thalidomide
Explanation

Drug-induced defects

#13

What is the term for the process of the blastocyst differentiating into three distinct layers of cells?

Gastrulation
Explanation

Early cell differentiation

#14

Which of the following environmental factors is associated with an increased risk of low birth weight?

Maternal smoking
Explanation

Prenatal exposure

#15

Which of the following maternal behaviors is associated with a decreased risk of neural tube defects?

Folic acid supplementation
Explanation

Nutritional intervention

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