Which of the following is not an unsustainable practice of society?
A. using large amounts of fossil fuels, fertilizers, and pesticides
B. reduction in population growth rate
C. using more freshwater resources for agriculture than in homes
D. deforestation and desertification
E. eating more meat than vegetables
Answer: B
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Red algae yield which of these commercial
products? a. carrageenan b. nori wrappers for sushi c. algin d. agar e. all EXCEPT algin
The flow of energy during the three phases of energy metabolism is controlled by what two pancreatic hormones?
What will be an ideal response?
Why can corn seeds germinate in total darkness?
A. The seed coating absorbs water. B. The endosperm provides the embryo with the nutrition needed during the initial germination stages. C. Seeds are heterotrophic and can capture nutrients from the soil. D. Soil microbes degrade the seed coating allowing the seed to germinate.
By analyzing the chemical formulas, you can determine that this molecule, CH3CH(NH2)COOH, is a(n) ________, whereas the molecule C5H10O5 is a(n) ________
A) cholesterol; amino acid B) fatty acid; sugar C) nucleotide; glycerol D) amino acid; sugar