In females, meiosis II is completed
a. before birth.
b. at the time of birth.
c. when eggs are ovulated each month.
d. at puberty.
e. only if the egg is fertilized.
E
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Who, along with Alfred Wallace, formulated the theory of natural selection?
A) Charles Darwin B) James Watson C) William Harvey D) Gregor Mendel E) Louis Pasteur
Where is the central pacemaker that controls circadian rhythm found in many animals?
a. in the suprachiasmatic nucleus b. in the eye c. in the skin d. in the optic nerve
The ultimate source of energy for most life on Earth is:
A) oxygen. B) the sun. C) the metabolic processes found in all living things. D) heat from the Earth.
Of the following goals listed, which are the two goals of epidemiology?
I. isolate the infectious pathogen for study and vaccine creation II. describe the nature, cause, and extent of new or existing diseases in populations III. identify patient zero and how the initial infection occurred IV. intervene to protect and improve health in populations V. distribute vaccines so that future outbreaks do not occur A) I and II B) III and IV C) III and V D) I and III E) II and IV