Basic dyes are
A. repelled by cells.
B. used in negative staining.
C. attracted to the acidic substances of bacterial cells.
D. dyes such as India ink and nigrosin.
E. anionic.
Answer: C
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The common ancestor shared by mouse and gorilla is at point ______ on the phylogeny shown.
A. A B. B C. C D. D E. E Clarify Question · What is the key concept addressed by the question? · What type of thinking is required? · What key words does the question contain and what do they mean? Gather Content · What do you already know about cladistics? Consider Possibilities · Consider the different answer options. Which can you rule out? Choose Answer · Given what you now know, what information and/or problem solving approach is most likely to produce the correct answer? Reflect on Process · Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
Which of the following statements is false?
a. Sensory receptors are structured to detect specific stimuli. b. Sensation is an awareness of a change in external or internal conditions. c. A stimulus will generate impulses that are different depending on where the signals are sent in the brain. d. Information about a stimulus is coded in the quantity and frequency of action potentials sent to the brain. e. Specific regions of the brain translate the information about the signal and convert it into a sensation.
Why is passive immunity always temporary?
A) all immunity is temporary B) the antibodies or immune cells are not produced by the body C) the antibodies are attacked by the bodies acquired immunity D) acquired immunity replaces passive immunity
Accounting for all cells in a human, meiosis occurs more often than mitosis.
a. true b. false