The positive subatomic particle is
a. the neutron.
b. the proton.
c. the electron.
d. both the electron and the proton.
e. both the neutron and the electron
B
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Small groups of individuals leave their home population and establish new settlements, mating only among themselves, are referred to as the
A. founder effect. B. bottleneck effect. C. artificial effect. D. natural effect. E. migration effect.
In this disease, bacterial enzymes digest the
alveolar wall and the lungs become distended and inelastic. This disease is
a. anemia. b. emphysema. c. asthma. d. bronchitis. e. atherosclerosis
Allopatric speciation
1.occurs when two populations exist in the same place. 2.occurs when two populations become separated geographically. 3.occurs only in plants. 4.is not very common. 5.never happens in animals.
Unstable isotopes can be useful
A) catalysts. B) in medical diagnosis. C) in vitamins. D) in the formation of hydrogen bonds. E) as buffers.