Bony fish maintain a fluid balance by ________.
A. maintaining high urea concentrations in their tissues
B. almost continuously drinking seawater and excreting salt
C. maintaining the same salinity in tissues as the surrounding seawater
D. excreting salt with feces
Answer: B
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The Dew Point in Houston on March 3 at 6:00 a.m. is 38°F. This means that when the air temperature there reaches 38° F, at that time
A) the air will be very humid. B) dew will evaporate. C) water vapor in the atmosphere will condense. D) dew will freeze.
The first scientific expedition to use an echo sounder was the ________
a. United States Exploring Expedition b. Meteor expedition c. Voyage of Trieste d. Challenger expedition
Which of the following statements about the physical environment is NOT true?
A) The physical environment is not always the pivotal concern in human decisions. B) Due to technology, humans represent the most significant change agents on earth. C) A stable lithosphere provides humans with materials for building and fuel for energy. D) The physical environment is the key factor in social development. E) A people's level of wealth can influence social attitudes toward modifying the environment.
Density independent
What will be an ideal response?