Which pathogen below has been completely eradicated from the human population due to vaccination programs?
a) Measles
b) Mumps
c) Small Pox
d) Polio
Answer: c) Small Pox
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Where does germination of a pollen grain occur in a flowering plant?
a. in the anther. b. in the micropyle. c. on the surface of the corolla. d. on the stigma.
The ratio of the size of the image seen with the microscope to the actual size of the object is called:a
magnification. b. resolution. c. resolving power. d. centrifugation. e. fractionation.
What are the protobionts produced by abiotically produced polypeptides?
a. polybionts b. prokaryotes c. microspheres d. peptidebionts e. stromatolites
In a population, as N approaches K, the logistic growth equation predicts that the
a) population will become monophyletic b) growth rate will not change c) carrying capacity of the environment will increase d) population size will increase exponentially e) growth rate will approach zero