Biology, 03.10.2021 17:40 elisesnelson
Which of the following best explains how the structures of chitin and cellulose make them hard to digest?
They both have an alternating arrangement of glucose molecules held together by hydrogen bonds, and both are insoluble.
They both have branching chains of glucose molecules, but cellulose can be digested and chitin cannot.
They both have an alternating arrangement of glucose molecules, but only chitin has the ability to store glucose.
They both have branching chains of glucose molecules, but only cellulose provides structure and support to the organism.
Answers: 3
Biology, 22.06.2019 15:00
Which of the following must be true for a fossil organism to be useful as an index fossil? a. the fossil organism must be widespread geographically. b. the fossil organism must be abundant. c. the fossil organism must be limited to a short span of geologic time. d. all of the above.
Answers: 1
Biology, 22.06.2019 18:30
Abeaker of water was heated and then placed on a bench in the laboratory. the water cooled until it was the same temperature as the air in the laboratory. which of these explains the mechanism by which the water cooled? a. heat energy was transferred from the water to the air. b. water molecules from the water formed warm water currents. c. the water molecules absorbed energy from the molecules in the air. d. the water released radiation until it contained no heat energy.
Answers: 1
Which of the following best explains how the structures of chitin and cellulose make them hard to di...
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