If auxin transport was limited at shoot tips, what would occur?
A. It would have no effect on leaf formation.
B. It would result in increased formation of leaf primordia at many locations.
C. Leaf primordia formation would be limited to the cells where auxin was transported.
D. No new leaves would form.
C. Leaf primordia formation would be limited to the cells where auxin was transported.
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Four of the five characteristics listed below are true
of a neuron at its resting potential. Select the exception. a. The interior of neuron is positive. b. The exterior of neuron has positive charge. c. More sodium ions are outside neuron. d. More potassium ions are inside neuron. e. The membrane of neuron is polarized.
Poliomyelitis is an RNA virus that can invade the nervous system and cause paralysis within a matter of hours. Polio has been virtually eliminated world-wide by which of the following?
a. Antibiotics b. Vaccination c. Mosquito control d. Quarantine e. Improve water quality
Which of the following regulates salt balance?
A) ADH B) aldosterone C) atrial natriuretic hormone (ANH) D) renin E) both aldosterone and ANH
What molecule is not an example of a sex steroid hormone?
A. Prolactin B. Estrogen C. Testosterone D. Progesterone E. Estradiol