In vascular plants, sugars are transported throughout the plant by ____
a. sclerenchyma
b. phloem
c. collenchyma
d. parenchyma
e. xylem
ANSWER: b
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Heritability may be calculated as which of the following?
A. The total variance minus environmental variance B. Total variance minus genetic variance C. Genetic variance divided by environmental variance D. Genetic variance divided by total variance
During the catarrhal stage of pertussis, symptoms are:
a. runny nose and mild cough. b. severe and violent coughing. c. vomiting and "whooping" as air is rapidly inspired into the lungs past a swollen glot-tis. d. lymphocytosis and fever.
All ________ consist of a thiazolidine ring, a beta-lactam ring, and an R group.
A. penicillins B. aminoglycosides C. cephalosporins D. macrolides E. tetracyclines
If you were using cladistics to construct a phylogeny of canines, which of the following would be the most useful outgroup?
a. Leopard b. Domestic dog c. Coyote d. Wolf e. Crocodile