Author Question: White ____________________ laboratory rats have been of major importance in medical, biological, and ... (Read 54 times)

Pineappleeh

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White ___________________ _ laboratory rats have been of major importance in medical, biological, and psychological research.
 Fill in the blank(s) with correct word

Question 2

The ___________________ _ rat is sometimes referred to as the Norway rat, barn rat, sewer rat, or wharf rat.
 Fill in the blank(s) with correct word



cassie_ragen

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Answer to Question 1

albino

Answer to Question 2

brown



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