Segregation
A. happens whenever a cell is fertilized.
B. happens when chromosomes separate and move to the poles.
C. is the separation between daughter cells after cell division.
D. None of these answers define segregation.
B. happens when chromosomes separate and move to the poles.
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Freshwater fish are in a hypotonic environment. What keeps the cells in their body from lysing?
A. Freshwater fish have chloride channels that actively move chloride out of the gills into the surrounding water, allowing water to move into the gills. B. Freshwater fish have chloride channels that actively move chloride out of the gills into the surrounding water, allowing water to move out of the gills. C. Freshwater fish have chloride channels that actively move chloride into the gills, allowing water to move into the gills. D. Freshwater fish have chloride channels that actively move chloride into the gills, allowing water to move out of the gills.
Examine Figure 48.5 in your text. According to this figure, mean temperature changes from 1940–1980 and 1999–2008 have been greatest:
A. in Australia. B. in southern Africa. C. near the equator. D. in South America. E. in the northern hemisphere.
The procedure in which fertilization takes place in a laboratory dish and the resulting zygote is placed in the woman's uterine tube is called
A) embryo transfer. B) ZIFT. C) RhoGAM. D) GIFT.
How do desertification and deforestation lead to reduced precipitation and drought?
What will be an ideal response?