What does the curvy line on the above graph represent?
a) Average amount of rainfall on the Galapagos Islands.
b) The average beak size of Galapagos finches.
c) The diet of the Galapagos finches.
d) The number of wet and dry years.
e) The average number of droughts.
Ans: b) The average beak size of Galapagos finches.
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The fact that DNA replication occurs in virtually the same way in all organisms reflects:
A. its evolution early in the history of life. B. its multiple origins in different lineages of organisms. C. the laws of thermodynamics. D. the fact that mutations are generally harmful. E. the universal genetic code.
Given what you now know, what information and/or problem solving approach is most likely to produce the correct answer?
What will be an ideal response?
What occurs within the female cone of a pine tree?
a. meiosis b. mitosis c. development d. fertilization e. all of these
The union (mating) of two bacterial cells and the transfer of DNA between the two cells is termed ____
a. conjuctiva b. conjugation c. conception d. convolution e. connection train