Otitis media may lead to dangerous meningitis in children due to infection with
A. Streptococcus agalactiae.
B. Streptococcus pneumoniae.
C. Streptococcus mutans.
D. Enterococcus.
E. Mycoplasma pneumoniae.
Answer: B
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You are performing an experiment to assay phosphorylation of a substrate by a protein kinase. Based on the data in the table below, what do these experimental results suggest?
A. The substrate is not required for phosphorylation. B. The substrate can undergo autophosphorylation. C. The protein kinase is required for phosphorylation. D. GTP is not required for phosphorylation.
A linear depiction of energy flow in an ecosystem is a(n):
a. food web. b. food chain. c. trophic web. d. ecological pyramid. e. pyramid of numbers.
Which term describes the chemical signaling that allows bacteria in biofilms to communicate
a. regulated cytokinesis b. quorum sensing c. sensitive chemotaxis d. molecular cascade
Which of the following is not involved in the regulation of the reproductive system?
A. hypothalamus B. testes/ovaries C. anterior pituitary D. adrenal gland E. nervous system