If the DNA from a single cell were stretched end to end, how long would it be?
a. 2 nanometers
b. 2 micrometers
c. 2 millimeters
d. 2 centimeters
e. 2 meters
ANSWER: e
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Which phylum is a member of the Parazoa clade?
a. Nemertea b. Porifera c. Rotifera d. Ctenophora e. Echinodermata
Which mutation in DNA would lead to the change of a single amino acid in a protein?
A. a frameshift B. a missense mutation C. a nonsense mutation D. one base insertion E. one base deletion
Which of the following is in contact with the soil into
which it is growing? a. vascular cylinder b. apical meristem c. root cap d. pericycle e. outer cortex
A visitor to an American tropical forest will probably never get to see a jaguar, the largest native cat species in the Americas, but will see many plant-eating monkeys
Use your knowledge of energy pyramids to explain the rarity of the predatory cats.