Electronegativity is the tendency of an atom to attract ____ to itself in a chemical bond
a. neutrons
b. protons
c. electrons
d. delta forces
e. polar associations
ANSWER: c
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Which two factors determine whether a reaction is spontaneous?
a. free energy and activation energy b. activation energy and enthalpy c. enthalpy and entropy d. entropy and activation energy e. activation energy and energy coupling
A pollen grain is best described as
a. a spore with a male gametophyte inside. b. a spore with a female gametophyte inside. c. a gametophyte containing an egg. d. a male sporophyte. e. a female sporophyte.
External fertilization
A. requires specialized behavior. B. occurs in amphibians. C. often leaves fertilized eggs susceptible to predation. D. involves the release of eggs and sperm into a body of water. E. All of these statements are correct.
Which of the following statements about living organisms is correct?
A.) carry and transmit genetic information B.) are all made of multiple cells C.) have the ability to respond to their environment D.) exchange matter and energy with the environment E.) can be generated from nonliving matter