You find colorless areas in cells in a Gram-stained smear. What should you do next?
a. A capsule stain
b. A simple stain
c. A flagella stain
d. An endospore stain
e. An acid-fast stain
Ans: d. An endospore stain
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Connective tissues typically have _____
A) little space between the membranes of adjacent cells B) the ability to transmit electrochemical impulses C) the ability to shorten upon stimulation D) relatively few cells and a large amount of extracellular matrix
What structure in most ray-finned fish is responsible for buoyancy control?
a. Gas gland b. Blubber c. Squaline d. Swim bladder
An organism with a temperature growth optimum near 80°C and a pH growth optimum between two and three is usually referred to as a(n) ________.
A. thermophile B. thermoacidophile C. halophile D. thermoalkalophile
The “pulse” we feel in our wrists and ankles is associated with blood flow through ____
a. arteries b. arterioles c. capillaries d. venules e. veins