What species was once considered so benign that microbiologists used it to trace movements of air currents in hospitals and over cities?
What will be an ideal response?
Serratia
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A biologist develops a new drug that seems to dramatically slow the onset of symptoms resulting from HIV infection
Close monitoring of HIV-infected cells reveals that the viral proteins are in the form of long polyproteins. The biologist most likely developed a _____. A) reverse transcriptase inhibitor B) CD4 inhibitor C) protease inhibitor D) polymerase inhibitor
A person with neither anti-A nor anti-B antibodies in circulation has which of blood type?
A) A B) B C) AB D) O
An australopith is a(n) _____
a. craniate d. amniote b. vertebrate e. placental mammal c. hominoid f. all of these
carbon dioxide fixation occurs ______, and the Calvin cycle occurs _______.
Fill in the blank(s) with the appropriate word(s).