Carnivores are indicated by
a. A.
b. B.
c. C.
d. D.
e. E
C
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During human gestation, rudiments of all organs develop _____
A) in the first trimester B) in the second trimester C) in the third trimester D) while the embryo is in the oviduct E) during the blastocyst stage
A bacterium is found that can photosynthesize in the presence of light but uses hydrogen sulfide and releases elemental sulfur as a bi-product. This organism can best be classified as a
A. chemolithoautotroph. B. chemoheterotroph. C. photoautotroph. D. photoheterotroph. E. pathogen.
Which of the following increase the chances for hemorrhoid development?
A) pregnancy B) aging C) consumption of dietary fiber D) bacterial infection E) chronic constipation
You are passing through one of the science buildings on a university campus when you see a researcher come out of his laboratory and go into another room. You hear and then see a newly hatched duckling come out of the lab and run to follow the researcher into the other room. The duck's behavior can best be described as
Select one: a. a fixed action pattern. b. classical conditioning. c. imprinting. d. operant conditioning. e. altruistic.