The pressure of the oceans increases by one atmosphere for every ____ meter increase in depth
a. 5
b. 10
c. 15
d. 20
e. 25
B
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After making careful observations, scientist construct a(n)
A. scientific method B. hypothesis C. cohort D. research question
Gay matter is located in the ____ of the cerebrum
a. outer region b. inner region c. ventricle d. right, but not left, hemisphere e. left, but not right, hemisphere
Flatworms have _______ nerve cords that run the length of their bodies, while nemotodes have _____.
a. one, two b. two, three c. two, four d. one, four
All of the following are true concerning plasmids
EXCEPT that they a. are self-reproducing circular molecules of DNA. b. are sites for inserting genes for amplification. c. may be transferred between different species of bacteria. d. may confer the ability to donate genetic material when bacteria conjugate. e. are usually essential in bacteria.