The human body requires about ____ of fat each day to stay healthy
a. 1 teaspoon
b. 4 teaspoons
c. 1 tablespoon
d. 4 tablespoons
e. 1 cup
ANSWER: c
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Which of the following statements correctly describe(s) a relationship between transpiration and other processes in plants? Select all that apply.
a. Transpiration is important in cooling leaves on warm, sunny days. b. In most plants, the highest rate of transpiration occurs when the rate of photosynthesis is also highest. c. Open stomata provide a low-resistance pathway for CO2 to enter and for water to exit the leaf. d. The large surface area exposed to air inside the leaf maximizes the plant’s ability to absorb CO2 while minimizing water loss through transpiration. e. Water is pulled from the roots to the leaves by transpiration, whereas mineral nutrients diffuse from the roots to the leaves. f. To minimize water loss during dry conditions, most plants must also restrict their ability to carry out photosynthesis.
The success of Chitwan National Park in Nepal is attributed primarily to ____
a. ecotourism b. exclusion of local residents c. ecosystem valuation d. benefits provided to local residents e. income derived through hunting
The tunic of tunicates is composed of:
a. a cellulose-like substance. b. chitin. c. silica. d. calcium carbonate. e. starch.
What is one of the benefits of genetic engineering of plants?
A.) reduced diversity among crop plants B.) increased allergies to plants and pollen C.) elimination of natural crop pollinators D.) enhanced disease resistance in crops