The biosphere consists of many ________, each consisting of the organisms in a specific geographic area and their physical environment
Fill in the blank(s) with correct word
ecosystems
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Which of the following is true regarding hagfish and lampreys?
A. They are characterized by a bony lower jaw. B. They are invertebrates. C. They are bony fish. D. They are vertebrates.
Which population size exhibited the greatest amount of variation in allele frequency during these simulations?
a. 100 b. 1000
The diploid set of chromosomes in Drosophila embryos replicates six times faster than the single E. coli chromosome, even though there is about 100 times more DNA in Drosophila than in E
coli and the rate of movement of the replication fork in Drosophila is much slower. How is this so?
Unlike bacterial operons, eukaryotic operons
A) are all positively controlled. B) are all negatively controlled. C) are restricted to certain eukaryotic kingdoms. D) are exceedingly rare. E) None of these