________________ Is a Form of Communication Made Up of Short

question 21

Multiple Choice

________________ is a form of communication made up of short sentences with high-pitched,exaggerated expression,clear pronunciation,distinct pauses between speech segments,and repetition of new words in a variety of contexts.

• A)Child-directed speech
• B)Telegraphic speech
• C)Referential communication
• D)Expressive communication

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Definitions:

Genetic Changes

Alterations in the DNA sequence of an organism, which can be due to mutations, gene flow, genetic drift, or natural selection.

Vertebrates

A subphylum of chordates that includes fishes, amphibians, reptiles, birds, and mammals; possess a bony vertebral column.

Common Ancestor

The latest ancestor from whom all members of a specific group directly originate.

Allele Frequency

The proportion of a specific allele in the population. Compare with genotype frequency and phenotype frequency.