FF01 Human Growth and Development Version 1
Practice exam for Western Governors University WGU Exams under Western Governors University Exams (College Exams). 5 sample questions.
Sample Questions
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Question 1
Which role does the placenta have in embryo growth and development?
Correct Answer: D
Rationale: The placenta provides nutrients and oxygen to the developing embryo, facilitating growth via the umbilical cord. It does not digest nutrients, perceive stimuli, or transmit electrical signals, which are unrelated to its primary function.
Rationale: The placenta provides nutrients and oxygen to the developing embryo, facilitating growth via the umbilical cord. It does not digest nutrients, perceive stimuli, or transmit electrical signals, which are unrelated to its primary function.
Question 2
Which term is used for the outer cells of the human blastocyst?
Correct Answer: C
Rationale: The trophoblast forms the outer layer of the blastocyst, contributing to the placenta and supporting implantation. The embryonic disk, neural plate, and mesenchyme are involved in other developmental processes, not the outer cells.
Rationale: The trophoblast forms the outer layer of the blastocyst, contributing to the placenta and supporting implantation. The embryonic disk, neural plate, and mesenchyme are involved in other developmental processes, not the outer cells.
Question 3
Which time period is regarded as the germinal period of prenatal development?
Correct Answer: A
Rationale: The germinal period spans the first two weeks postconception, from fertilization to implantation. Later periods (embryonic and fetal) cover subsequent weeks, making other options incorrect.
Rationale: The germinal period spans the first two weeks postconception, from fertilization to implantation. Later periods (embryonic and fetal) cover subsequent weeks, making other options incorrect.
Question 4
How do teratogens affect prenatal development?
Correct Answer: C
Rationale: Teratogens, such as drugs or infections, can cause physical malformations like facial deformities in newborns by disrupting prenatal development. Depression and autism are not directly linked, and anoxia is a secondary effect, not a primary outcome.
Rationale: Teratogens, such as drugs or infections, can cause physical malformations like facial deformities in newborns by disrupting prenatal development. Depression and autism are not directly linked, and anoxia is a secondary effect, not a primary outcome.
Question 5
A seven-month-old baby begins vocalizing consonant-vowel sequences such as 'ma-ma-ma' and 'da-da-da.' Which form of intentional vocalization does this illustrate?
Correct Answer: C
Rationale: Babbling involves repetitive consonant-vowel sequences like 'ma-ma-ma,' typical in infants around seven months. Cooing is earlier vowel sounds, holophrasis involves single words, and gesturing is non-vocal.
Rationale: Babbling involves repetitive consonant-vowel sequences like 'ma-ma-ma,' typical in infants around seven months. Cooing is earlier vowel sounds, holophrasis involves single words, and gesturing is non-vocal.