Quaking aspen trees reproduce vegetatively by ____
a. suckers
b. corms
c. bulbs
d. tubers
e. rhizomes
ANSWER: a
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Which one of the following is most correct concerning plant behavior?
A. It is influenced by external factors such as electrical impulses. B. It is influenced by internal factors such as plant growth regulators. C. It is influenced by internal factors such as gravity. D. It is influenced by external factors such as microRNAs. E. None of these choices is correct.
A brown-eyed couple already has a child with blue eyes. What is the probability that their next child
will have blue eyes, assuming that the brown eye allele is dominant and the blue eye allele is recessive? a. 0 b. 1/4 c. 1/2 d. 3/4 e. 1
What is the main role of red blood cells?
A) Carry sugars B) Carry oxygen C) Fight off infections D) Aid blood in clotting
The diagnosis of hypertension in adults is based on the _____
A) measurement of fatty deposits on the endothelium of arteries B) measurement of the LDL/HDL ratio in peripheral blood C) percentage of blood volume made up of platelets D) blood pressure being greater than 140 mm Hg systolic and/or greater than 90 mm Hg diastolic