Identify three greenhouse gases and briefly explain how these gases are contributing to global
warming. What will be an ideal response?
Although carbon dioxide is the major greenhouse gas, trace gases such as methane, surface ozone,
nitrous oxide, and CFCs also contribute to global warming. These gases absorb infrared radiation in
the atmosphere, and this absorption slows the flow of heat into space, thus warming the lower
atmosphere.
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A type of cofactor would be ________.
A. active sites B. substrates C. metallic ions D. vitamins E. ribozymes
Sponges from which class have been used as bath sponges?
a. Calcarea b. Hexactinellida c. Demospongia d. Sclerospongiae
The above diagram represents a single
a. nephron. b. kidney. c. renal capillary. d. renal vein. e. renal artery
__________ regulates the maturation of the mammary glands, and then oxytocin causes __________. Fill in the blank(s) with the appropriate word(s)