Fungi that live inside plant leaves and provide protection from insects are
A) mycorrhizae.
B) photosynthetic.
C) saprophytes.
D) endophytes.
E) lichens.
D
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Imagine that you are studying a new species. As you examine the circulatory system, you note that the diameter of the vessels grows smaller and smaller as you move farther from the heart, but the blood is always contained within vessels. If you want to place this new species into a group whose membership is solely based on whether the animals included share this described type of circulatory system, which animals would be included in this group? Check all that apply.
A. fish B. housefly C. frogs D. all mollusks
Nerve impulses travel along neurons by the opening of channels that allow sodium ions to flow inward, followed by an outward flow of potassium ions
In order to ensure that the impulse may be produced at any time, sodium is actively transported out of the cell and potassium is transported into the cell by the sodium/potassium pump. Which of the following types of work is performed by the sodium/potassium pump? A) mechanical B) electrical C) concentration D) synthetic E) bioluminescent
Discuss coevolution as it relates to predator-prey interactions. Include a brief discussion of two specific examples. What will be an ideal response?
What would you expect to happen to the pH of an unbuffered solution if a few drops of acid were added?
A) The pH would increase. B) The pH would remain the same. C) The pH would decrease. D) The pH would become neutral. E) The pH would increase and then rapidly decrease.