Which of the following is the terminology for an organism at the top trophic level of the food chain?
a. primary producer
b. secondary producer
c. apex consumer
d. secondary consumer
c. apex consumer
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produces short sequences of RNA, which allows polymerase to synthesize a new strand of DNA.
A. DNA primase B. DNA helicase C. DNA polymerase D. DNA topoisomerase E. DNA ligase
The eradication of malaria in Europe resulted from a specific breakthrough in the science of ____
a. systematics b. ecology c. morphology d. physiology e. sanitation
Which one of the following sexually transmitted diseases can be cured by the use of antibiotics?
A) genital herpes B) AIDS C) pubic lice D) gonorrhea E) hepatitis B
How does an enzyme work to catalyze a reaction?
It supplies the energy to speed up a reaction. It lowers the energy barrier needed for reactants to achieve the transition state. It lowers the energy of activation of a reaction. It supplies the energy to speed up a reaction and lowers the energy barrier needed for reactants to achieve the transition state. It lowers the energy barrier needed for reactants to achieve the transition state or lowers the energy of activation of a reaction.