Scientists who study physical, cognitive, and social changes throughout the life cycle are called

To take a standard test such as the psat or plan students must have an

What was piaget's explanation as to why preschool-age children in the preoperational stage make errors on tasks requiring conservation? a) preschool children's tendency toward centration prevents them from focusing on other relevant features of a situation b) preschool children have not yet developed numerical understanding; therefore, different amounts are meaningless c) preschool children's neural-visual network is not fully matured d) preschool children have not lived long enough and accrued enough experience to know the difference between quantities

For 50 points a crustacean is a. both a consumer and a predator b. both a predator and a prey animal c. both a producer and a predator d. prey only