During the embryonic period, the ectoderm is formed, which will become the ____
a. skin, hair, nails, sensory organs and nervous system
b. muscles, bones, reproductive system and circulatory system
c. digestive and respiratory systems
d. hormonal and endocrine systems
Answer: A
You might also like to view...
Research shows that infants are _____.
A. not able to perceive people as engaging an intentional and goal-directed behavior until after 2 years of age. B. not able to do "social referencing" until after 2 years of age . C. less socially sophisticated and insightful at early ages than previously thought. D. more socially sophisticated and insightful at early ages than previously thought.
In the older years of an adult
A. response time slows B. response time accelerates C. cognitive and motor development interact reciprocally D. response time slows and cognitive and motor development interact reciprocally