If reasonably pure preparations of virus are available, the number of virus present may be determined by
A. photocolorimetry.
B. gas chromatography.
C. light microscopy.
D. electron microscopy.
D
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Upon transmission of a nerve signal to a muscle cell, ________ is released from the sarcoplasmic reticulum through a gated channel.
Fill in the blank(s) with the appropriate word(s).
Insects frequently contain bacteria in their cytoplasm, and these bacteria form a mutualistic association with their host.
Answer the following statement true (T) or false (F)
Trichonympha is a unicellular flagellated protist that lives within termites and allows the termite to be able to "digest" wood. Trichonympha is classified as
A. a detritovore. B. a heterotroph and autotroph. C. an autotroph. D. a heterotroph and detritovore. E. a heterotroph.
Please match the white blood cells with the statements that most accurately describe them to test your understanding of the behavior of white blood cells.
Carry oxygen and carbon dioxide A) Red blood cells B) B cells C) Monocytes D) Platelets E) Neutrophils