A procedure that divides organisms into two or more groups depending on their individual reactions to the same staining procedure is referred to as ________ staining.
Fill in the blank(s) with the appropriate word(s).
differential
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Lancelets are primarily non-motile, and feed by filtering food out of the water in which they live, using a combination of cilia and oral tentacles. During this process, the lancelet collects filtered water, which must be expelled from its body. Where does filtered water exit the lancelet?
a. pharyngeal slits b. anus c. atriopore d. mouth
Which of the following is not a secondary compound produced by plants?
a. caffeine b. nicotine c. resin d. cyanide e. chlorophyll
The extensive infolding of eukaryotic membranes
form structures that allow for a. the concentration of nutrients. b. greater surface area for metabolism. c. the transport of proteins. d. the protection of metabolic machinery. e. all of these.
An electrocardiogram (ECG, EKG) is a measure of the heart's:
a. electrical system. b. blood flow to the body. c. contraction rate. d. blood flow to heart muscle. e. pumping ability.