All of the following are true of biofuels EXCEPT
A) there is concern that using food products as a fuel source will reduce the global food supply and increase food prices.
B) demand for biofuels has placed demands on rain-forest lands.
C) these are fuels such as methane produced from renewable biological resources such as soybeans and corn.
D) the goal of their use is to reduce harmful carbon dioxide emissions.
E) biofuels are the only solution to our growing need for fuels in the future.
E
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Refer to Figure 31-2. Which structure contains chemoreceptors for locating food?
A. 1
B. 2
C. 3
D. 4
E. 6
What type of eating disorder involves consuming large amounts of food, followed by self-induced vomiting?
A) anorexia B) bulimia C) osteoporosis D) diabetes
Which of the following bases is contained by DNA but not RNA?
A. Adenine B. Guanine C. Thymine D. Uracil
Which of the following serves as a temporary endocrine gland in females, and what does it secrete?
a. the corpus luteum; estrogen and progesterone b. the uterus; luteinizing hormone and follicle-stimulating hormone c. the endometrium; estrogen and follicle-stimulating hormone d. the ovaries; estrogen and luteinizing hormone