Sometimes a child does not live beyond its passage through the birth canal. The delivery of a child who is not alive is called a

The ways preschoolers combine words and phrases to form sentences, known as syntax, ___________ each month

a. remains stable c. doubles b. shows a slight increase d. triples

Recent evidence reveals that, even at the microscopic level,

A) it takes a change in several base pairs to influence human traits. B) approximately 85 percent of chimpanzee and human DNA is identical. C) biological events of profound developmental significance are the result of both genetic and nongenetic forces. D) simpler species have far more proteins than humans or primates.