If an insect eats the lettuce seedlings in your yard, it is acting most like a(n)
A) mutualist. B) herbivore. C) carnivore. D) host. E) omnivore.
B
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How did the researchers in Investigating Life 22.5 conduct their experiment studying "ant plants"?
A. They picked other insects off of some leaves. B. They removed the nectar from some leaves. C. They used drops of glue to exclude tramp ants from some leaves. D. They sprayed some leaves with insecticide. E. They picked the tramp ants off of some leaves.
Which event may occur in all viruses,
prokaryotes, and eukaryotes? a. duplication b. aneuploidy c. translocation d. mutation e. none of these
During quiet expiration, the return of the lungs to their resting position is dependent upon ____
a. diaphragm contraction b. internal intercostal muscle contraction c. the increased volume of the lungs d. oxygen levels reaching their peak e. elastic recoil of the chest wall and lungs
____ cells are alive at maturity and have primary cell walls that are especially thick at the corners
a. Sclerenchyma b. Collenchyma c. Parenchyma d. Phloem e. Xylem