What are the similarities and differences between the ways dogs and humans communicate the same feelings?

Which statement is a good description of a model? a) models are a description of nature based only on one or two variables. b) models are testable ideas but they are not very to most people. c) models are a description of nature that predicts more accurately than real events. d) models are an approximiation of a real system that omits all but most essential variables in a system.

Idont know any of these can anyone me

Sociologists found that the effects of institutionalization on infants, i.e. lack of a caring environment, will result in slower development of their mental, physical, and emotional skills. true or false? ?