Which of the following is evidence for the connection between comets and meteor showers?
a. Meteor and comets have the same appearance in the sky.
b. Meteor showers always occur when a comet is visible.
c. Meteor showers always occur 6 months after a comet passes Earth.
d. Meteor showers are an annual event. Many of these are known to be when the Earth crosses a comet's orbit.
d
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Approximately ____ genes have been identified in the genome of Arabidopsis thaliana
a. 28,000 b. 5,400 c. 3,200,000 d. 120,000 e. 67,000
Global air circulation patterns affect climate and the distribution of __________. Fill in the blank(s) with the appropriate word(s)
Distilled water refers to water that is nearly free of
a. solutes. b. ions. c. gases. d. suspended solids. e. none of these.
Which coenzyme is incorrectly matched with its function?
A) FAD / FMN: Electron transfers B) NAD+ /NADP+: Electron transfers C) THF / DHF: Make purines and pyrimidines D) Coenzyme A: Metabolism of pyruvic acid and lipids E) Cobalamin: Transfer of CO2 groups