What molecule from coal-burning power plants dissolves in water vapor in the air and falls as acid
precipitation?
a. sulfuric acid
b. ozone
c. mercury
d. sulfur dioxide
e. carbonic acid
D
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Evidence suggesting that snakes evolved from ancestral lizards includes the fact that _____
a. some give live birth to their young b. some have bony remnants of hind limbs c. all have internal fertilization d. all have amniotic eggs e. some actually have legs
Some codons are recognized by proteins, not by tRNAs.
Answer the following statement(s) true (T) or false (F)
Which of the following is the best definition of a virion?
a. An infective virus inside of a host b. An infective virus outside of a host c. An inert virus inside of a host d. An inert virus outside of a host e. A virus which has infected a bacteria
Which of the following statements about symbiotic relationships are true? (Check all that apply.)A) Plant-pollinator interaction is classified as a good example of mutualism.B) Both mutualisms and commensalisms result from the process of coevolution.C) It is sometimes difficult to determine if a specific relationship is mutualism, commensalism, or parasitism.D) Parasites can sometimes influence the behavior of their hosts to facilitate completion of their life cycles.E) Mutualists sometimes become parasites.
What will be an ideal response?