Aniline dyes like crystal violet have antimicrobial activity particularly against gram-positive bacteria and some fungi.
Answer the following statement true (T) or false (F)
True
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A virus that kills its host is said to be
A) lytic or virulent. B) temperate. C) lysogenic. D) virulent or lysogenic, but not temperate.
Why do scientists use model organisms?
What will be an ideal response?
One species of plant produces flowers when nights are 10 hours long. A related species comes into flower when nights are 9 hours long. What type of reproductive isolation would include this example?
A) gamete incompatibility B) temporal isolation C) mechanical isolation D) behavioral isolation
At the arteriole end of the capillary, precapillary sphincters
a. force blood back into arteries. b. control blood flow into capillaries. c. control blood flow into venules. d. connect arterioles to venules. e. force blood back into veins.