How can we identify a particular element?
a. By its number of protons
b. By its number of electrons
c. By its number of neutrons
d. By its shape of valence shells
e. By its amount of energy levels
a
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A new organism was found that was unicellular and 1 cm long. The "large" size of this organism alone would
A. mean that it could not be a bacterium. B. mean that it had to be a protista. C. mean little. D. mean that it had to be in the domain eukarya.
Where are sugars formed in the chloroplasts?
a. on the outer membrane b. on the inner membrane c. in the thylakoid compartment d. in the stroma e. within the thylakoid membrane
The almost complete loss of the American chestnut tree to the chestnut blight fungus had ____ ecological impact on
the moderately diverse Appalachian woodlands of which it was formerly a part. a. little b. great c. moderate d. undetectable e. detectable
A breeder of thoroughbreds selects only the fastest horses for breeding stock. This is an example of artificial _____
a) directional b) disruptive c) frequency-dependent d) sexual e) stabilizing