Which of the following increases the strength of the hydrophobic interactions in lipid bilayers and thus makes them less permeable to polar molecules?
A) the presence of double bonds
B) increasing temperature
C) removing cholesterol
D) increasing length of the hydrocarbon chains
Answer: D
Biology & Microbiology
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The equation that describes the relationship between phenotypic variance, genetic variance and environmental variance is
A. VP = VG + VE B. 1 = VG + VE + VP C. VE = VG + VP D. VG = VP + VE
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An alternative to species-based conservation focuses on the preservation of ____
a. small species b. large species c. plant species only d. insect species only e. intact habitats
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What was likely the first informational molecule of life?
A. carbohydrates B. lipids C. proteins D. RNA E. DNA
Biology & Microbiology
Evolution acts at the level of the
A. species. B. community. C. ecosystem. D. population.
Biology & Microbiology