Which of the following statements about the consequences of global warming are true? (Check all that apply.)A) The rate of global warming may be too great for populations to be able to adapt through natural selection.B) Rising sea levels will be a consequence of global warming.C) Global warming will cause a decrease in the incidence of diseases caused by mosquitoes.D) The frequency of El Niño events may increase as a consequence of global warming.E) Agricultural production will increase.
What will be an ideal response?
A, B, D
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According to bottom-up and top-down control models of community organization, which of the following expressions would imply that an increase in the size of a carnivore (C) population would negatively impact its prey (P) population, but not vice versa?
A) P ? C B) P ? C C) C ? P D) P ? C ? P E) C ? P ?
The thermostable enzyme most commonly used in PCR is reverse transcriptase.
Answer the following statement true (T) or false (F)
Biofilm formation by Pseudomonas bacteria on the surface of a natural loofa sponge kept in the shower is an example of which type of relationship?
A. Commensalism B. Parasitism C. Mutualism D. Predation
Which PCR step causes the denaturation of double-stranded DNA?
A. Add primers. B. Heat target DNA to 94°C. C. Add DNA polymerase and nucleotides at 72°C. D. Repeat the cycle of heating and cooling. E. Cool DNA to between 50°C and 65°C.