The zebrafish is a small fish that is cream-colored with black stripes. Scientists have found that some zebrafish produce more pigment resulting in
a golden color with black stripes. The gold color appears to be caused by the
production of irregularly shaped proteins. Which of the following most likely
caused this variation in the zebrafish population?

In "the man in the water," what was the remarkable occurrence that rosenblatt reported?

How many chromosomes does each human cell contain? a. 23 chromosomes b. 26 chromosomes c. 43 chromosomes d. 46 chromosomes

2. cheryl hears a new song on the radio every day during the week on her commute to work. surprisingly, when the song comes on at a party on saturday night, she knows most of the words without trying. describe the three ways that we use cognition to learn without reinforcement. which type of cognitive learning without reinforcement best explains how cheryl knew the song lyrics? explain your answer.