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​When children are playing by themselves but are watching each other while they do so, they are engaging in _______________ play.

​Flannery is only a few years old, and she likes to do puzzles. As she snaps the pieces together, she can be heard saying things like, “This one goes here,” and “No, that doesn’t fit!” Flannery’s verbalizations are an example of ____ speech.

​When a child, usually around six months of age, produces vowel-consonant combinations that approximate real speech, she is ____.

​Your textbook notes the following three key concepts in biology. For each one, provide a potential real-life example illustrating each of these principles:  “Heredity and environment interact dynamically throughout development.”  “Genes can influence the kind of environment to which a person is exposed.”  “Environmental influences typically make children within a family different.”

Visual expansion and motion parallax are called kinetic cues because they both involve _______________ to help one estimate depth.

​If you are checking on a sleeping infant with another person and you want to say something to them without waking up the child, which type of voice would be the worst choice to speak in?

​The age of ____ is defined as the age at which a fetus can survive if it must be born because most of its bodily systems function adequately. It typically occurs 22 to 28 weeks into the pregnancy.

​Phil and Lil are both playing with dolls in the same room. Use them in examples of parallel, simple social, and cooperative play.

​A full understanding of gender begins by understanding that gender does not change over time.

​When a measure being used in a research study produces a consistent index of a characteristic, it would be described as being