★ Cells, Genetics & Heredity Review Quiz
Which is a characteristic of most single-celled organisms?
A. They have a complex nervous system.
B. They contain several different types of cells.
C. They perform all life processes.
D. They have a circulatory and a respiratory system.
Preview next quiz:
Which is an example of a trait that is inherited?
A. dimples
B. intelligence
C. weight
D. favorite color
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