You are inspired by your professor's lecture on human demography to decrease your ecological footprint. What steps would best help you accomplish this goal? Select all that apply.
_____ Carpool, walk, or bike more often.
_____ Trade in your sedan for an SUV you can use for camping.
_____ Start a high-protein diet that replaces refined carbohydrates with meat.
_____ Eat meat-free meals at least one day a week.
_____ Dress warmer and turn down the thermostat.
_____ Heat your home using the fireplace instead of natural gas.
_____ Take a road trip to visit all the national parks.
_____ Live out in the countryside, even if your job is in the city.
__X__ Carpool, walk, or bike more often.
_____ Trade in your sedan for an SUV you can use for camping.
_____ Start a high-protein diet that replaces refined carbohydrates with meat.
__X__ Eat meat-free meals at least one day a week.
__X__ Dress warmer and turn down the thermostat.
_____ Heat your home using the fireplace instead of natural gas.
_____ Take a road trip to visit all the national parks.
_____ Live out in the countryside, even if your job is in the city.
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What happens during depolarization?
A. Potassium ions flow out of the cell. B. Sodium ions flow into the cell. C. The sodium/potassium pump protein reverses itself. D. Potassium ions flow out of the cell AND sodium ions flow into the cell.
Which of the following is a difference between how a frog and chytridiomycetes obtain energy?
A. Frogs ingest their food; chytridiomycetes secrete digestive enzymes. B. Chytridiomycetes ingest their food; frogs secrete digestive enzymes. C. Frogs are heterotrophs; chytridiomycetes are phototrophs. D. Chytridiomycetes are heterotrophs; frogs are phototrophs. E. Frogs are autotrophs; chytridiomycetes are phototrophs.
A broth medium has been inoculated, and microbial numbers will be counted periodically to generate a bacterial growth curve. At 2 hours after inoculation, the culture has progressed through lag phase and is now in log phase. At this point, the population size is 1 million cells. The generation time is 30 minutes. Assuming the continuation of log growth, how many cells would there be at 2 hours of growth in log phase?
a. 16 million b. 8 million c. 32 million d. 4 million e. 2 million
Which of the following hormones is mismatched with its function?
A. GnRH-stimulates the anterior pituitary B. FSH-stimulates the hypothalamus C. LH-controls the production of testosterone D. Inhibin-blocks GnRH and FSH secretion E. Testosterone-brings about male secondary sexual characteristics