Vertebrates with a three-chambered heart include

A. fish.

B. amphibians.

C. birds.

D. mammals.

E. annelids.


B. amphibians.

Biology & Microbiology

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Hepatitis B virus is an example of a DNA virus that uses reverse transcriptase in its replication cycle.

Answer the following statement true (T) or false (F)

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Describe some of the relationships fungi have with other organisms

What will be an ideal response?

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Research has revealed that the development of psychological well-being and growth is influenced by what?  

A.  imprinting B.  physical contact C.  sensitization D.  associative learning E.  pheromone levels

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What sequence of events usually occurs in the process of protein synthesis?

A) Protein ? RNA ? DNA B) RNA ? DNA ? protein C) DNA ? RNA ? protein D) RNA ? protein ? DNA

Biology & Microbiology