What is the best way to minimize our individual impact upon the environment?
a. Decrease energy consumption
b. Compost all organic wastes from our households.
c. Buy reusable products.
d. Recycle plastics.
e. Buy durable goods that will last a long time.
a
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The purple nonsulfur bacteria
A. utilize organic molecules as a source of electrons for photosynthesis. B. typically can grow aerobically in the dark as chemoorganoheterotrophs. C. grow anaerobically as photoorganoheterotrophs. D. All of the choices are correct.
Eukaryotic cells
A. are more obviously compartmentalized than prokaryotes. B. usually have a single circular supercoiled piece of DNA. C. contain peptidoglycan in the cell wall. D. have the same size ribosomes as prokaryotes. E. usually have a single circular supercoiled piece of DNA AND contain peptidoglycan in the cell wall.
In which assisted reproductive method is the male sperm donor always unknown?
a. ART b. AID c. IVD d. hMG e. IVF
Which of the following statements is false?
A) Immunofluorescence is when fluorochromes bind to a specific target and fluoresce after exposure to UV light. B) Fluorochromes can be natural or synthetic. C) Scanning electron microscopy provides information about surface structures. D) Transmission electron microscopy provides information about internal structures. E) Fluorescence microscopy is when fluorochromes stain a sample so it will fluoresce when exposed to UV light.