The arthropod skeleton is composed of ________
A) cellulose
B) peptidoglycan
C) chitin
D) glycogen
C
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Which of the following is not true of gene regulation by DNA looping?
A. The precise distance between the regulatory sequence and the promoter is important. B. It can result in gene repression. C. It can result in gene activation. D. It can result in the regulation of a gene even thousands of base pairs away from the regulatory site.
DNA Polymerase I
A. removes primers. B. adds bases to new DNA chain. C. proofreads DNA chain. D. seals DNA gaps.
During phase "2" in the figure above, the growth is ____ as long as resources are plentiful
a. logical b. logistical c. arithmetic d. exponential e. analytical
In dry shrublands
a. plants are adapted to episodes of fire. b. primary production is abundant throughout the year. c. there are constant cool temperatures throughout the year. d. winters are mild and summers are wet. e. precipitation occurs evenly year round.