Plants can generally absorb and make use of nitrogen in the form of ____
a. NO3- only
b. both NO3- and NH4+
c. NH4+ only
d. N2 only
e. both N2 and NH4+
ANSWER: b
You might also like to view...
In ________, people with a serious genetic disorder are not permitted to have children.
A) the United States B) England C) China D) Russia
The release of which hormone from the posterior pituitary causes the initial contractions of the smooth muscle in the uterus?
a. estrogen b. prostaglandins c. oxytocin d. prolactin
Plasma membrane permeability of which of the following ions is most important in generating the resting membrane potential?
A) sodium ions B) potassium ions C) chloride ions D) calcium ions E) None of the above generates resting membrane potential.
A student is observing microorganisms in a sample of pond water. One organism of interest has an obvious nucleus, small oval structures containing a green pigment, and does not appear to be motile. In which of the following groups would this microbe most likely be classified?
A. Eukaryotes (Protozoa) B. Eukaryotes (Fungi) C. Archaea D. Eukaryotes (Algae) E. Bacteria