In the figure above, the honeycomb on which the bee is standing is made up primarily of ____
a. carbohydrates
b. nucleotides
c. proteins
d. lipids
e. amino acids
ANSWER: d
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What is NOT a reason why an abscessed wound might not respond to antibiotic treatment?
A. The bacteria within the abscess have ceased replicating, and many antibiotics require actively replicating cells in order to be effective. B. The blood vessels that would bring the drug to the area have been destroyed or clogged with clots, preventing the drug from getting to the microbes in the abscess. C. The bacteria in an abscess have all acquired multi-drug antibiotic resistance, so any drugs that are used will have no effect. D. The chemical composition of the pus in the abscess often inactivates antibiotic drugs, making them ineffective.
Populations in which environmental conditions don’t vary much within a habitat tend to have ____ dispersion
a. random b. clumped c. uniform d. dynamic e. unpredictable
Which of the following organelles plays an important role in apoptosis, or programmed cell death?
a. ribosomes b. mitochondria c. chloroplasts d. vacuoles e. peroxisomes
Algae and protozoa in the soil are quite hardy, and therefore their abundance is not a useful indicator of environmental pollution
Indicate whether the statement is true or false