Which form(s) of nitrogen is(are) unusable by plants?
a. ammonium
b. nitrates
c. nitrogen gas
d. More than one of these answers is correct.
C
You might also like to view...
A bivalent contains how many chromatids?
A. 2 B. 4 C. 8 D. Depends on the cell
Molecules released by an individual into the environment that trigger behavioral responses in other individuals are called:
a. rubiscos. b. pheromones. c. alarm signals. d. phospholipids. e. language.
Which structure of the eudicot embryo within a seed is NOT correctly identified?
(a). The radicle is the embryonic root (b). A cotyledon is a seed leaf. (c). The endosperm is the nutrient source for the embryo. (d). The epicotyl is the shoot above the attachment of the cotyledons. (e). The hypocotyl is the embryo plant below the attachment of the cotyledons.
Sexually transmitted chlamydia is similar to infection with Yersinia pestis in that they both can produce
A) urethritis. B) pelvic inflammatory disease in females. C) conjunctivitis. D) buboes. E) pneumonia.