Children combine several gestures in their pretend play at around the same time that they first show two or three-word sentences in their speech. This supports which view of language development?

Which of the following students provides the best definition of the term mnemonics?

a. Alfredo: "Mnemonics is the use of imagery to assist our memory." b. Julia: "Mnemonics is the use of external memory aids to improve our memory." c. Cynthia: "Mnemonics refers to using a strategy to improve our memory." d. Jaime: "Mnemonics is any memory trick that actually improves our prospective memory."

Mice without the gene that produces this hormone (question 28) or its receptors were unable to control their food intake or to maintain a normal body weight.

a. true b. false