Media that contains extracts from plants, animals, or yeasts are
A. complex.
B. synthetic.
C. enriched.
D. reducing.
E. All of these choices are correct.
Answer: A
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The ________ gene is responsible for removing many of the drugs introduced into the human body
A) HAR-1 B) CYP2D6 C) ASPM D) FOXP2 E) BRCA1
Which statement about human population growth is true?
A) Human population size on Earth today is no longer changing and has effectively reached equilibrium. B) Demographic transition is a transition from high birth rates and high death rates to low birth rates and low death rates. C) During a demographic transition, birth rates typically drop first due to the availability of reliable contraception. D) Human population size has increased faster and faster throughout human history.
The stains for spirochetes are argyrophil techniques
a. true b. false
Your biology professor takes the class on a field trip to a local lake. You spend an hour studying the lake and writing down all observations. You hypothesize that the lake is oligotrophic. Which observations would support this hypothesis? Check all that apply.
A. The lake has little planktonic growth. B. An oxygen probe reveals low oxygen content in the water. C. The lake has extensive aquatic plant beds. D. The shoreline is mostly rock and sand with very little vegetative matter. E. The bottom of the lake is easily visible.