Sexually transmitted diseases are a major cause of infertility. Knowing this, what method of birth control would you think is best for reducing infertility rates?
A. diaphragm
B. condoms
C. IUDs
D. oral contraceptives
E. vasectomy
Answer: B
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Allopolyploidy is a significant factor in the evolution of which type of organism?
a. fungi b. animals c. bacteria d. protozoa e. flowering plants
Which of the following is a protozoan with two nuclei and no mitochondria?
A. Plasmodium B. Paramecium C. Euglena D. Giardia E. Trichomonas
Which is not a characteristic of fungi?
A. Heterotrophic nutrition B. Photosynthetic C. Presence of cell walls D. Include single-cell and filamentous forms
Viruses used in live viral vaccinations have the potential to revert to disease-causing forms within a host, effectively causing the diseases they were intended to prevent. What is the name for this reversion?
a. back mutation b. reverse lysis c. retroviral d. devolution