Which item emits carbon dioxide into the atmosphere?
A) green plants
B) volcanoes
C) soil
D) water
B
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In higher animals, including humans, meiosis results in the production of
(a) egg cells (ova). (b) gametes. (c) sperm cells. (d) all of the above.
Resolving power
a. is the amount that an object's image is enlarged. b. is the extent to which detail in an image is preserved during the magnifying process. c. is the degree to which image details stand out against their background. d. focuses light rays emanating from an object to produce an image.
Source: Provided by the SeaWiFS Project, NASA/Goddard Space Flight Center, and ORBIMAGEExamine the figure above, which shows indices of aquatic and terrestrial primary productivity. Based on concentrations of chlorophyll, primary productivity in the ocean
A. is usually high in warm, tropical seas. B. is uniform, since the ocean is a single continuous body of water. C. tends to be high near polar regions, due to seasonal mixing that redistributes nutrients. D. is greatest in the open ocean, due to less air pollution and cloud cover. E. tends to increase with increase temperatures, from the poles to the equator.
The incorporation of a heavy metal inducible promoter in front of RFP in the transgenic animal GloFish is an example of what?
A) a bioassay for water contamination by heavy metals B) a transgenic animal sold as a gimmick C) a transgenic fish that glows under UV light when heavy metals are absent D) an in vitro assay for water contamination by heavy metals