Which of the following statements about nucleotide structure is false?
a. The sugar can be either ribose or deoxyribose.
b. The sugar is bonded to the phosphate group.
c. The nitrogenous base is bonded to the sugar.
d. The phosphate group is bonded to the nitrogenous base.
Answer: d. The phosphate group is bonded to the nitrogenous base.
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Energy is defined as
A. heat. B. the capacity to do work. C. change. D. movement.
You inject a dye into an animal cell and observe that it moves into adjacent cells. This would occur through _____.
A. gap junctions B. tight junctions C. desmosomes D. plasmodesmata E. adherens junctions
The muscle that extends and rotates the thigh when walking is called the ________
Fill in the blank(s) with correct word
Since snakes, people, and fish all like to eat frogs, this is an example of a
A. food web. B. food chain. C. preference test. D. trophic level variation.