Which of the following can be changed based on
new evidence?
a. hypothesis
b. theory
c. prediction
d. experiment
e. all of these
Answer: e
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The earliest microbial fossils that have been found are dated from approximately 4.5 million years ago.
Answer the following statement true (T) or false (F)
Breathing rates are automatically increased
when ___ levels are ___.
a. oxygen...high b. carbon dioxide...high c. oxygen...low d. carbon dioxide...low e. ATP...low
G. lamblia infection in the gut ____; therefore, some people may be benefited by the presence of this protist
a. reduces the risk of parasitic worm infection b. increases the likelihood of getting irritable bowel disease (IBD) c. inhibits fat uptake from food d. causes no ill effect e. increases the risk of rheumatoid arthritis
Freshwater lakes in temperate regions will turn over
in the a. fall. b. winter. c. spring. d. summer. e. fall and spring.