In the waiting room of a women's health clinic, the staff are creating an educational display about varieties of birth control. What general categories of birth control will they want to outline? (Check all that apply.)A) Drugs that block gonad developmentB) Devices to prevent implantationC) Hormones to close cervixD) Hormones to prevent ovulationE) Hypothalamic implantsF) Nasal spray for malesG) Sperm barriersH) Sperm destructionJ) Surgical sterilization
What will be an ideal response?
B, D, G, H, J
The categories of contraceptive techniques include: sperm barriers, sperm destruction, hormones that prevent ovulation, devices or hormones that prevent implantation, or surgical sterilization.
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Differentiation of the pleomorphic strains of streptococci and the similar corynebacteria or lactobacilli can be best accomplished by:
a. examination of Gram stain of the colony. b. vancomycin-susceptibility testing. c. serologic testing. d. examination of the morphologic features after growth in thioglycollate broth.
The molluscan class ________ includes the snails and slugs.
Fill in the blank(s) with the appropriate word(s).
The transitional fossil Archaeopteryx shows a combination of traits consistent with the hypothesis that it shared a common ancestor with ________
A) dinosaurs and bats B) hippos and whales C) reptiles and birds D) dinosaurs and birds
Aerobic respiration, anaerobic respiration, and fermentation:a
are endergonic pathways. b. release free energy. c. require oxygen. d. are also known as organismic respiration. e. are anabolic pathways.