Motor neurons 

A. send messages to the brain.
B. are part of the sensory nervous system.
C. normally receive messages from sense organs.
D. are normally considered part of the peripheral nervous system.


D. are normally considered part of the peripheral nervous system.

Biology & Microbiology

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_____ selected species have a low rate of per capita growth.

A. r- B. p- C. K- D. n-1 E. n-

Biology & Microbiology

A tissue sample is sent to the laboratory and microscopically examined for the presence of amebae. To differentiate between the host cells and the organism, _______ stain is used to allow the organisms to appear bright pink with a green-blue background

a. Trichrome b. Giemsa c. Wright's d. periodic acid–Schiff (PAS)

Biology & Microbiology

Some restriction endonucleases cut the DNA in such a way that short, single stranded regions are

created. We call these regions

a. hydrogen-bonding ends b. sticky ends c. tacky ends d. blunt ends e. jagged ends

Biology & Microbiology

Many farmers and ranchers consider prairie dogs to be pests and have active programs to eliminate them. Is this viewpoint commensurate with good ecosystem management?

a. Yes, because it protects cultivated food crops. b. Yes, because it increases biodiversity. c. No, because it decreases biodiversity, although it may protect cultivated food crops. d. It has no effect on biodiversity.

Biology & Microbiology