It is possible to build a light microscope capable of 10,000× magnification, but the image would not be sharp because resolution is independent of magnification.

Answer the following statement true (T) or false (F)


True

Biology & Microbiology

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Curare is a poison that was used by South American Indians on their arrowheads. Curare blocks the action of the neurotransmitter acetylcholine. How did the action of curare make hunting easier for these Indians?

A. Blocking acetylcholine shut down cellular respiration and killed organisms. B. The prey were paralyzed. C. The hunted animals bled to death. D. Curare interferes with the spontaneous depolarization of heart muscle cells.

Biology & Microbiology

Mammals underwent an evolutionary "explosion", or major adaptive radiation, during the ____

a. Mesozoic era b. Cambrian period c. Triassic period d. Devonian period e. Cenozoic era

Biology & Microbiology

The ____ of marine mammals receives normal blood supply during deep dives

a. lungs b. heart c. brain d. blood vessels e. heart, brain, and blood vessels

Biology & Microbiology

Collagen fibers are characteristic of which tissue?

a. muscle b. epithelial c. connective d. nervous e. glandular

Biology & Microbiology