Name the three layers present in three-week-old embryos and describe what each layer will later form
What will be an ideal response?
A good answer will include the following key points:
+ The ectoderm or outer layer will become hair, the outer layer of skin, and the nervous system.
+ The mesoderm or middle layer will form muscles, bones, and the circulatory system.
+ The endoderm or inner layer will form the digestive system and the lungs.
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If a child maintains attention on an object that passes out of the child's sight, such
behavior would illustrate Piaget's concept of (a) conservation (b) assimilation (c) accommodation (d) egocentrism (e) none of the above
John is recently widowed and decides to sell his house and move to a condominium complex for seniors
John is looking forward to having his meals prepared and served in a community dining room, and also to having staff available to help him with chores such as shopping, housekeeping, and laundry. The type of facility that John is moving into would best be considered a(n): a. nursing home b. lifestyle condo c. assisted-living facility d. senior daycare center