A major reason reptiles were adapted to life on land was their ability to _____.
a. quickly evolve into birds
b. produce shelled, waterproof eggs containing a supply of water
c. maintain a constant body temperature
d. use atmospheric oxygen by breathing through gills
e. rapidly replace body water lost through evaporation
Ans: b. produce shelled, waterproof eggs containing a supply of water
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Why are some reactions exothermic?
A) The products have lower potential energy than the reactants. B) They are spontaneous. C) They are not spontaneous. D) The products have higher entropy than the reactants.
Name the three usual phases of bacterial growth in a liquid medium
What will be an ideal response?
The ability of cells to control their level of gene expression is called
A. gene transformation. B. gene regulation. C. gene splicing. D. gene addition. E. gene correction.