Which is true of heterotrophs?
A) They capture light energy.
B) They cannot be unicellular.
C) They store energy in the form of heat.
D) They can function as autotrophs in an emergency.
E) They can obtain energy from consuming phototrophs.
E) They can obtain energy from consuming phototrophs.
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Unlike rocky beaches, sandy beaches have vertical zonation of organisms that live in the sediment
Indicate whether the statement is true or false
The sugars in DNA and RNA ____
a. have a different number of carbon atoms
b. have the same structural formulas c. are the two components of sucrose d. are monosaccharides e. are disaccharides
Which statement about allopolyploidy is FALSE?
a. Many flowering plant species are allopolyploids. b. Allopolyploidy can result in a new, reproductively isolated species in just one generation. c. Allopolyploidy accounts for a large portion of the remarkable species diversity observed on Earth today. d. The hybrid may have a combination of traits conferring greater fitness than the parent species. e. The hybrid may assume a new role in the environment and so, coexist with the parent species.
The scientific method includes all of the following EXCEPT
A) conclusions. B) an observation. C) a hypothesis. D) experimentation. E) a testable theory.