The microscope was invented in the late 1800s.
TRUE
FALSE...
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Biology, 22.06.2019 05:30
The vaccine in a flu shot contains weakened flu viruses. how does a flu shot work with the immune system? a. it destroys lymphocytes. b. it destroys macrophages. c. it activates macrophages. d. it activates lymphocytes.
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Biology, 22.06.2019 09:30
What type of appendages do sponges cnidarians roundworms annelids mollusks arthropods echinoderms and vertebrate have? jointed, not jointed, absent
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Biology, 22.06.2019 11:00
Why did adult crab numbers decline in he ecosystem, even though sea stars were still available?
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Biology, 22.06.2019 13:30
What kinds of molecules can pass through the cell membrane without any problem?
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