Phosphorus-32 (radioactive) has _____ than phosphorus-35 (normal).
Fill in the blank(s) with the appropriate word(s).
Answer: 3 fewer neutrons
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Water held behind a dam would best reflect ________.
A. potential energy B. kinetic energy C. chemical energy D. heat energy E. mechanical energy
What mutations occurred in typical icefish that prevented production of hemoglobin?
A. fragmentation of both the alpha and beta genes B. deletion of the alpha gene and fragmentation of the beta gene C. deletion of both the alpha and beta genes D. fragmentation of the alpha gene and deletion of the beta gene E. destruction of red blood cells in the bone marrow
What two major types of recombination involve exchange between duplex DNAs?
What will be an ideal response?
Swallow bugs cause nest failures and juvenile mortality. As colony size increases, the costs to cliff swallows are
a. increased juvenile mortality. b. decreased juvenile mortality. c. decrease in the number of unhatched eggs. d. a change in daily survival probability.