What are the two major effects of the discovery of the hunger and satiety peptides?
What will be an ideal response?
(1) The sheer number of these hunger and satiety peptides indicated that the neural system that controls eating likely reacts to many different signals, not just to one or two (e.g. not just to glucose and fat)
(2) the discovery that many of the hunger and satiety peptides have receptors in the hypothalamus has renewed interest in the role of the hypothalamus has renewed interest in the role of the hypothalamus in hunger and eating
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The ________ is the federal agency that provides a majority of federal funding for medical research in the United States and oversees all federally funded medical research in the United States
A) Food and Drug Administration B) National Institutes of Health C) Environmental Protection Agency D) U.S. Department of Agriculture E) Department of Environmental Protection
The figure included shows the body temperature of lizards versus air temperature in two different habitats-open and shaded forest. Which one of the following conclusions is best supported by these data.
A. Lizards in shaded forest habitats eat more to maintain their temperature. B. The body temperature of lizards is more constant in open than in shaded forest habitats. C. Lizards are more active in open habitats. D. Lizards sunbathe more in open habitats. E. The negative effect of air temperature on body temperature is less in shaded forest habitats because the temperature varies less there.
Photosynthesis enables plants to capture the energy from sunlight. In this essential process, plants incorporate the carbon from CO2 into high-energy __________ molecules, which the plant cell mitochondria use to produce ATP
(a) fat (b) sugar (c) protein (d) fiber
What three features define eusociality? (Check three.)
_____ colony resides in an enclosed hive or nest _____ cooperative brood care _____ haplodiploidy _____ insect species only _____ overlap of generations _____ reproductive division of labor _____ reproduction during a mating flight