Which factor is directly involved in calculating NPP?
A) the change in growth of the human population
B) the amount of solar energy converted to chemical energy by plants
C) the amount of chemical energy required by plants to support themselves
D) the number of births and deaths in a population over one year
B
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To identify genes that are actively expressed, researchers isolate
A) DNA. B) protein. C) mRNA. D) amino acids.
The Y-shaped part of the DNA molecule where the actual replication process occurs is called the replication ________.
A. junction B. fork C. tongue D. splice
Which structure is least likely to fossilize?
a. bone b. teeth c. seeds d. shells e. skin
Rape (from which canola oil is produced), sunflowers, and soybeans have been genetically modified to
enhance production of ___________ fatty acids. Fill in the blank(s) with the appropriate word(s).