. As of 2011, how many species were listed in the IUCN’s Red List of endangered species?
a. 610,000
b. 6100
c. 61,000
d. 6,100,000
c. 61,000
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Which of the following is likely to be the most stable?
A. Double-stranded DNA that is 50% G + C B. Double-stranded RNA that is 65% G + C C. RNA/DNA duplexes that are 65% G + C D. Double-stranded DNA that is 65% G + C E. RNA/DNA duplexes that are 50% G + C
Her skin is an example of _______________
a. an innate defense mechanism b. a first line of defense against pathogens c. an adaptive mechanism d. both an innate defense mechanism and a first line of defense against pathogens
Enzymes function primarily by ____
a. forcing the reactants into an altered environment which in turn creates a change in the free energy of the reactants relative to the products b. altering the equilibrium point of a particular reaction to favor the formation of products c. increasing the probability that the reactants will come into close proximity to each other in the proper orientation for forming the transition state molecule d. removing reactants from solution in a set ratio to increase the chances of the remaining individual reactants interacting with each other e. changing the ratio of reactants to products so that the forward reaction is favored
The fact that the two alleles of each gene are packaged into separate gametes because they move apart from each other during gamete formation is Mendel's law of Select one:
a. independent assortment. b. crossing over. c. segregation. d. random fertilization. e. population dynamics.