Under favorable conditions, plasmodial slime molds exist primarily as
a. a coordinated, multicellular blob.
b. individual amoeba-like cells.
c. individual flagellated cells.
d. a single, multinucleated cellular blob.
e. spore-forming fruiting bodies.
D
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A patient who has had a severe hemorrhage accidentally receives a large transfusion of distilled water
directly into a major blood vessel. You would expect this mistake to: a. have no unfavorable effect as long as the water is free of bacteria. b. have serious, perhaps fatal consequences because there would be too much fluid to pump. c. have serious, perhaps fatal consequences because the red blood cells could shrink. d. have serious, perhaps fatal consequences because the red blood cells could swell and burst. e. have no serious effect because the kidney could quickly eliminate excess water.
The introduction of a few individuals into a new habitat that is unoccupied by other members of the species is a(n)
A) temporal isolation. B) founder event. C) adaptive radiation. D) limited speciation. E) extinction.
Identify the plants in the photo at the right as male or female, gametophyte or sporophyte, moss or liverwort.
What will be an ideal response?
A scientist collects a spore from a new species of fungus and observes that this spore has a flagellum. What does the presence of a flagellum suggest about the lifestyle of this species?
A. It is aquatic. B. It is an endomycorrhizal fungus. C. It relies on insects for spore dispersal. D. It is unicellular. E. Its spores are produced asexually.