Consciousness is best associated with the
Select one:
a. whole brain.
b. frontal lobe only.
c. cerebrum.
d. whole central nervous system.
e. cerebellum.
c. cerebrum.
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Copyright© The Mc-Graw-Hill Companies,Inc, Permission Required for reproduction or display.Based on a variety of experiments, it is known that the rate of photosynthesis is highest when wavelengths of light between 400 and 500 nm are used, and when wavelengths around 700 nm are used. What does this indicate about the relative importance of chlorophyll a and b in photosynthesis?
A. Reflection of light by chlorophyll a and b is essential for the process of photosynthesis B. Absorption of light by chlorophyll a and b is essential for the process of photosynthesis C. Transmission of light by chlorophyll a and b is essential for the process of photosynthesis D. Chlorophyll a and b are much less important than other pigments in the reflection, absorption and transmission of light relevant to photosynthesis
The initiation of translation in archaea ________.
A. employs fMet-tRNAifMet the same as bacterial cells, but proceeds in a mechanism similar to eukaryotes B. employs fMet-tRNAifMet and proceeds in a mechanism similar to bacterial cells C. employs Met-tRNAiMet and proceeds in a mechanism similar to eukaryotic cells D. employs Met-tRNAiMet the same as eukaryotic cells, but proceeds in a mechanism similar to bacteria
Figure 22.18
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Refer to the above figure for questions.
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In the accompanying illustration depicting the life cycle of a conifer (pine), which numbered item represents the sporophyte?
A. 1 B. 2 C. 3 D. 4 E. 5
The virulence of an organism may be enhanced by all of the following except
A. Its ability to spread through the tissues B. Its ability to escape from the phagosome C. Its ability to overcome body defenses D. Its ability to produce exotoxins E. Its ability to grow on artificial laboratory media