Which of the following statements is true concerning
Streptococcus pneumoniae?
a. About half of known strains are resistant.
b. It can cause meningitis and ear infections.
c. Crowding helps it spread.
d. Resistance arises by horizontal gene transfers.
e. All of these are true.
Answer: e
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True or False: The diverse array of Anolis lizards in Hispaniola is the result of several different species of lizards originally colonizing the island. Very little diversification occurred after these colonists arrived at Hispaniola
A. true B. false
Helper T cells stimulate the proliferation of:
A. Cytotoxic T cells and Macrophages B. Cytotoxic T cells and B cells C. B cells and Macrophages d. All of the above
An animal loses water by four of the following processes. Which one is the exception?
A. Bleeding B. Excretion C. Secretion D. Exhalation E. Inhalation
Gee Yee was jogging up the hill next to your house when he suddenly had terrible, suffocating pain in his chest. You called the emergency medical technicians (EMTs), and Gee was rushed to the emergency room, where the medical staff will most likely
perform this test, which involves the use of an x-ray machine. A) C-reactive protein B) electrocardiogram (or EKG, ECG) C) coronary angiography D) Western blot