Larval salamanders eat small insects and crustaceans. These insects and crustaceans are
herbivores. Thus, the salamanders belong to the __________ trophic level.
a. first
b. second
c. third
d. fourth
C
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Bacteria protect themselves from bacteriophage infections by producing restriction enzymes that cut up foreign RNA
of the phage. ____________________ Indicate whether the statement is true or false.
The genetic codes for STOP codons are
A) AUG, UGA and CAC B) UAU, AAU and GAU C) UAA, UAG and UGA D) CAA, AGA and AAU
Where does the O2 come from in the light-dependent reaction?
What will be an ideal response?
Which of the following pertains to an improperly canned food product on a store shelf that has a bad odor and putrefaction of the canned material?
A) mesophilic spoilage B) flat sour spoilage C) bacterial soft rot D) thermophilic anaerobic spoilage E) hydrogen sulfide spoilage