Object permanence can be developed by placing objects a. on top of another object. b. under a blanket. c. in the baby's hand. d. on top of a table

What a self improvement for a busy person who had difficulty finding time to exercise/ dropping out of clubs and activities/ refusing social invitations from friends/ scheduling daily invitation activity/ sleeping fewer hours at night

During the first month of development, how many layers of cells make up the embryo? a. 1 b. 2 c. 3 d. 4

Bloodborn pathogens are infectious microorganisms carried by what?