The __________ (nematodes) have an unsegmented
body, a cuticle that is molted, a complete gut, and a
false coelom. Fill in the blank(s) with the appropriate word(s).
Answer: roundworms
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The human finger contains ____ joints
a. hinge b. fulcrum c. ball-and-socket d. lever e. ligament
The bacterium E. coli requires simple organic molecules for growth and energy—it is therefore a:
A) chemoautotroph. B) chemoheterotroph. C) lithotroph. D) photoautotroph. E) photoheterotroph
You are studying a cell structure that is approximately 100 nm in size. Which of the following provides the greatest magnification you can use to see this structure?
A) brightfield microscope B) darkfield microscope C) transmission electron microscope D) phase-contrast microscope E) scanning electron microscope
The fungi that cause serious plant disease, such as Dutch elm disease and chestnut blight, belong to the phylum
A. Ascomycota. B. Zygomycota. C. Imperfect fungi. D. Basidiomycota. E. Actinomycetes.