Within a genus that normally produces large numbers of offspring, one particular species evolves maternal care behavior. What do you predict will happen to the survivorship curve?
A. No change is likely.
B. It may change from type I to type III.
C. It may change from type III to type I.
D. It may change from type I to type II.
C. It may change from type III to type I.
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Which part of an antibody determines to which epitope it will bind?
A. the two arms of the Y B. disulfide chains C. the heavy chains D. the stem of the Y E. the Fc portion
If a chromosome lacks certain genes, what has most likely occurred?
A) disjunction B) an inversion C) a deletion D) a translocation E) a nonduplication
No ferning of the vaginal fluid is detected, and you reassure your patient that her membranes have not ruptured. You explain that the laboratory technicians will use which five basic techniques (in order) to manipulate, grow, examine, and characterize any microorganisms present in the collected specimens?
A) isolation, incubation, inspection, identification, and inoculation B) inspection, identification, isolation, incubation, and inoculation C) identification, isolation, incubation, inspection, and inoculation D) inoculation, incubation, isolation, inspection, and identification
If the genome of the bacterium E. coli requires about 20 minutes to replicate itself, how can the genome of the fruit fly Drosophila be replicated in only 3 minutes?
(a) The Drosophila genome is smaller than the E. coli genome. (b) Eukaryotic DNA polymerase synthesizes DNA at a much faster rate than prokaryotic DNA polymerase. (c) The nuclear membrane keeps the Drosophila DNA concentrated in one place in the cell, which increases the rate of polymerization. (d) Drosophila DNA contains more origins of replication than E. coli DNA.