Which muscle tissue type will move and maintain balance within the body?
a. Cardiac
b. Skeletal
c. Skeletal and cardiac
d. Smooth and cardiac
e. Smooth
b
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What is the main role of the pigment molecules within the antenna or light-harvesting complex?
A. Absorb photons and transfer light energy to the reaction center chlorophyll. B. Oxidize water and release oxygen to the reaction center chlorophyll. C. Synthesize NADPH. D. Increase H+ concentration in the stroma. E. Pass electrons to the electron transport chain and then to NADPH.
Geographic biodiversity "hot spots"
A. have the highest vascular plant species richness and ?3 unique ecosystems. B. have the greatest number of species that have lost >50% of their original range. C. contain ?10% of the world's vascular plant species and have lost >50% of their original range. D. have ?1500 endemic plant species and have lost ?70% of the original habitat.
Microarrays are a powerful diagnostic tool because
A. a patient sample can be simultaneously tested for potentially thousands of suspected agents in the realm of the afflicting disease. B. analysis of the pathogen's genome can be performed and the gene sequences compared to suspected pathogens. C. ribosomal RNA can be isolated, sequenced, and analyzed with speed and accuracy. D. PCR can be performed rapidly and the DNA matched against known gene sequence.
The L-ring in flagella is found in
a. all bacteria with flagella b. only bacteria with multiple flagella c. gram negative organisms with flagella d. gram positive organisms with flagella e. it is only found in archaea with flagella