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Figure 39.10A, B, and C
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The following question refers to the figure above.
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A villus is indicated by the letter ____.
A. A
B. B
C. C
D. D
E. E
Answer: A
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What does the graph in the figure above tell you about the definition of a keystone species?
A) A keystone species has little interaction with other species in an environment. B) Removing a keystone species from the community drastically reduces diversity. C) Adding a keystone species to the community will make it more diverse. D) Removing a keystone species from the community will eventually allow for the invasion of a new species.
The membrane's permeability to sodium ions is at its maximum at label _____
A) A B) B C) C D) D E) E
You have discovered a new bacterial strain that causes urinary tract infections. Closely related bacterial species cannot cause infections. You compare the strains and find that your new strain has structures composed of protein external to its cell wall
What structures might your new strain have that the other strains do not? Why? What will be an ideal response?
Which of the following statements is true regarding atomic mass?
a. The atomic mass can be used to differentiate between different isotopes of the same element. b. The atomic mass is defined as the sum of electrons and neutrons in an atom. c. The atomic mass is calculated by adding the total number of electrons, protons, and neutrons in an atom. d. The atomic mass is synonymous with the atomic number.