Based on recent comparisons of DNA and RNA sequences, what type of organisms are fungi most closely related to?
a. animals
b. bacteria
c. algae
d. plants
Ans: a. animals
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Which of the following does S. pneumoniae use to survive in the host?
A. Plasmids B. Pili C. Flagella D. Capsules
In which of the following stages of the viral infectious cycle do enveloped viruses usually acquire their envelopes?
A. Penetration B. Assembly C. Release D. Component biosynthesis
After observing variability among plant and animal species in various locations, Charles Darwin proposed an explanation for what he saw. The broad proposal included reasons that species could be modified through genetic variation, leading to measurable similarity and difference. Evidence for the proposal came from biological, geographic, and geological observations. His proposal allowed for the prediction of new species that might be found in new settings, based on environmental conditions. Darwin's proposal is an example of
A. a theory. B. an independent variable. C. a standardized variable. D. a dependent variable. E. a hypothesis.
Interneurons ____
a. act as relay stations b. detect stimuli c. control muscles and glands d. are nearly always found in the brain and spinal cord, detect stimuli, and control muscles and glands e. are nearly always found in the brain and spinal cord, but they only detect stimuli