The sun shining on a tidal pool during a hot day heats the water. As some water evaporates, the pool becomes saltier, causing _____
A) an increase in its carbon dioxide content
B) a decrease in its oxygen content
C) an increase in its ability to sustain aerobic organisms
D) a decrease in the water's density
B
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The only known eukaryotic-bacterial symbioses are the two that explain the development of the chloroplast and mitochondria
A. true B. false
Animals that are warm blooded, have body hair, and produce milk for their young are grouped in the class
a. amphibia b. mammalia c. aves d. reptilia
Which statement is FALSE regarding science?
(a). Science helps us to understand the natural world. (b). Science strives to be objective rather than subjective. (c). Correct scientific conclusions are permanent and never subject to change or refinement. (d). Information is gathered by scientific methods. (e). Information is gathered by scientific methods.
After one conducts a critical experiment, what is the next step in the scientific process?
A) Make observations. B) Formulate a hypothesis. C) Draw conclusions, and make revisions. D) Devise a testable prediction. E) Formulate a null hypothesis.