If cyanobacteria never evolved during Earth's history, how would this affect the composition of Earth's atmosphere?
A. There would be less nitrogen in the
atmosphere.
B. There would be less carbon in the
atmosphere.
C. There would be less oxygen in the
atmosphere.
D. There would be less methane in the
atmosphere.
E. There would be less hydrogen in the
atmosphere.
C
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If you were to replace the phosphate group of a phospholipid with a fatty acid chain, you would have
A. glycerol. B. a triglyceride. C. cholesterol. D. glycolipid. Clarify Question · What is the key concept addressed by the question? · What type of thinking is required? Gather Content · What do you know about the structure of a phospholipid? What other information is related to the question? Choose Answer · Given what you now know, what information and/or problem solving approach is most likely to produce the correct answer? Reflect on Process · Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
Which of these statements is true?
a. Transport through carrier proteins occurs more rapidly than through channel proteins. b. Osmosis transports vitamins and nutrients through a cell’s plasma membrane. c. Aquaporins facilitate the transport of water through a cell’s plasma membrane. d. Ions pass through channel proteins by bonding to the protein’s inner surface.
Answer the following statement(s) true (T) or false (F)
1. Resource partitioning would be most likely to occur between allopatric populations of species with similar ecological niches. 2. Mimicry is a form of camouflage. 3. Solar energy is the same thing as heat energy.
An organism in which foreign genes have been incorporated is called a:
a. recombinant organism. b. transgene. c. polymorphism d. transgenic organism. e. recombinant