Ten songbirds are isolated at birth and not exposed to any adults' songs as juveniles. After six months, it is observed that they sing the normal adult songs of their species. What can be concluded about the singing behavior in this particular species?

A. It is a combination of innate and learned behavior.
B. It is a learned behavior.
C. It is a conditioned response.
D. It is an innate behavior.
E. It is an operant response.


D. It is an innate behavior.

Biology & Microbiology

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When cells are metabolically active but not dividing, they are in the ________ phase.

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Biology & Microbiology