Which microscope does not use light in forming the specimen image?

A. phase-contrast
B. fluorescence
C. dark-field
D. bright-field
E. electron


Answer: E

Biology & Microbiology

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Matching. Choose the most appropriate answer for

each. 1. ___ millipede 2. ___ annelids 3. ___ arthropods 4. ___ placozoan 5. ___ cnidarians 6. ___ echinoderms 7. ___ flatworms 8. ___ rotifers 9. ___ mollusks 10. ___ roundworms 11. ___ sponges A. two pairs of legs per segment B. tiny, flattened, crawling forms C. planarians, flukes, tapeworms D. nematodes E. snails, squids, clams F. wheel animals G. flagellated collar cells present H. jellyfish and corals I. crustaceans, ticks, and insects J. polychaetes, earthworms, leeches K. sea urchins, sea stars

Biology & Microbiology

The term that is synonymous with a motor neuron is a(n) ____ neuron

a. input b. afferent c. efferent d. ganglia e. peripheral

Biology & Microbiology

________ forms the embryonic structures that later become bone

Fill in the blank(s) with correct word

Biology & Microbiology

A distinctive feature of eukaryotes is the organization of tightly packaged chromosomal DNA with proteins into a membrane-bound structure called a:

A. nucleus. B. cell. C. plasma membrane. D. nucleolus.

Biology & Microbiology