Nematodes
A. are roundworms.
B. are found in the gastrointestinal tract or the blood.
C. are carried by bacteria.
D. have flat segmented bodies.
E. are roundworms AND are found in the gastrointestinal tract or the blood.
E
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You arrive late to a biological seminar. However, just as you enter the room, you hear the speaker referring to the "amino end" and the "carboxyl end" of a macromolecule. Immediately, you know that they are talking about a:
A. carbohydrate. B. protein. C. lipid. D. DNA.
Sterilization involves ________ all viable microorganisms.
A. metabolically inactivating B. killing OR removing C. removing D. killing
The ultimate size of a cell is NOT limited by which one of the following?
A. the strength of the membrane B. the cell surface area C. the surface-area-to-volume ratio D. the size of the nucleus
Nitrogen-fixing bacteria, such as cyanobacteria, can use atmospheric nitrogen (N2 ) for their nitrogen source
Indicate whether the statement is true or false