All of the following are associated with subacute endocarditis, except
A) Signs and symptoms include fever, heart murmur, and possible emboli.
B) It occurs in patients that have prior heart damage.
C) Bacteria colonize previously damaged heart tissue resulting in vegetation.
D) It is caused by immune system autoantibodies that attack heart and valve tissue.
E) Oral bacteria get introduced by dental procedures to the blood.
D) It is caused by immune system autoantibodies that attack heart and valve tissue.
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Which of the following describes when a species that is not divided by any geographic barrier evolves into separate species within the same location?
a. gene flow b. founder effect c. sympatric speciation d. allopatric speciation
Social behavior in which the "actor" makes a sacrifice for the benefit of the "recipient" is called ________
Fill in the blank(s) with correct word
The earliest mammals resembled small:a
dogs. b. koalas. c. kangaroos. d. monkeys. e. shrews.
Mutant forms of tumor-suppressor genes act _____; both copies of the gene must be _______ before their protective function is lost.
a) as dominant Mendelian traits, mutated or deleted b) recessively, mutated or deleted c) recessively, preserved d) as dominant Mendelian traits, preserved