Repolarization of the ventricles is shown as the ___________ on an EKG.
A. P wave
B. P-Q (or P-R) interval
C. QRS complex
D. Q-T interval
E. T wave
Ans: E. T wave
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Complex structures called fruiting bodies are a characteristic of
A. Clostridia. B. myxobacteria. C. Streptomyces. D. lactic acid bacteria.
Which tissue distributes water and dissolved mineral ions through vascular plant bodies?
a. plasmodesmata b. phloem c. xylem d. rhizomes e. meristem
Diploid means having
A. one complete set of chromosomes. B. three complete sets of chromosomes. C. two complete sets of chromosomes. D. two chromosomes in each somatic cell. E. two chromosomes in each gamete.
What would be the best clue that a fossil skull was left behind by an ape that walked more or less upright?
A. The foramen magnum has a position relatively far forward. B. The mass of the brain is extremely large, relative to other mammals. C. Incisors and canine teeth are reduced compared to most primates. D. It has a flat, not-projecting face compared to most apes. E. The surface upon which jaw muscles anchor is relatively small.