Prokaryotic cells do NOT have
A) genes. B) cilia. C) ribosomes. D) cytoplasm. E) flagella.
B
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Amphipathic molecules
A. possess only hydrophilic properties. B. possess only hydrophobic properties. C. possess both hydrophilic and hydrophobic properties. D. possess neither hydrophilic nor hydrophobic properties. E. tend not to interact with other molecules.
Members of what domain are evolutionarily
closest to eukaryotes? a. Animalia b. Protista c. Fungi d. Bacteria e. Archaea
Graded motor unit recruitment is important to allow for coordinated movement to occur. According to Henneman's Size Principle, which motor units would be recruited first when voluntarily activated?
a. Type IIa b. Type IIb c. Type I d. All of the above
A sick child may have influenza or RSV. These virus infections have different treatment options, so the physician requests antibody titer tests. The results are as follows: anti-influenza antibodies are primarily IgM, and anti-RSV antibodies are all IgA and IgG. Which of the following is the most appropriate interpretation?
A) The child has a current RSV infection and was previously exposed to influenza. B) The child currently has influenza and has previously been exposed to RSV. C) The child has concurrent influenza and RSV infections. D) The child has neither influenza nor RSV. E) The results do not provide sufficient data to draw a conclusion.