Which bacteria is Normal Oral and Nasopharyngeal Flora but is involved in infective Endocarditis in adults who have underlying Congenital or Rheumatic Heart Disease?
What will be an ideal response?
Haemophilus aphrophilus
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Answer the following statement(s) true (T) or false (F)
1. Researchers in England found that, for three out of four habitat types they were studying, the most efficient strategy was to create a system of stepping stones linking existing habitat clusters. "Stepping stones" are a type of corridor. 2. The degree of allelic diversity of a population is independent of its size. 3. If the tilt of Earth's axis relative to its plane of orbit was increased to 30 degrees, the seasons in Boston would become less distinct. 4. Homo sapiens have existed on earth for 2% of the earth's history. 5. Prokaryotic organisms were the only life-forms present on earth for almost 2 billion years. Multicellular eukaryotes have only been around for about 25% of earth's history
In this scenario, the person’s eyebrow would be the __________
a. microhabitat b. life zone c. macrohabitat d. niche
The North American bison was hunted to near extinction in the 1800s, and has since recovered, but with decreased genetic diversity. This is an example of
A. gene flow. B. increased mutation rate. C. a bottleneck effect. D. natural selection. E. a founder effect.
The idea that most of the genetic variation found in populations is not subject to natural selection is the basis of
A. the principle of parsimony B. the maximum likelihood approach C. systematics D. the neutral theory of evolution E. cladistics