Macronutrients are defined as those elements:
A. required in certain relative amounts in the plant.
B. usually needed, but not always available.
C. required in relatively large amounts.
D. only taken up through the soil.
C. required in relatively large amounts.
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A notable exception to this evolutionary adaptation is the lack of any flying species within the
A. insects. B. amphibians. C. birds. D. reptiles. E. mammals.
The average number of individuals in a specified
portion of habitat is the population’s a. distribution. b. carrying capacity. c. density. d. size. e. birth rate.
Reverse transcriptase synthesizes a DNA molecule from an RNA template.
Answer the following statement true (T) or false (F)
Observing replication of circular plasmid DNAs by electron microscopy showed that:
A. replication initiates at multiple origins, creating multiple replication bubbles in the plasmid. B. template strands completely unwind before replication starts. C. replication initiates from a single origin, creating a single replication bubble in the plasmid. D. the plasmid DNA must become linear before replication can initiate at each end of the linear plasmid. E. replication occurred only at one replication fork of the bubble created.