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Questions in biology

[Free] In a population of doves in a forest, a small group of long-tailed doves migrates to another forest. Over successive generations, the population in the new habitat shows more long-tailed doves than short-tailed ones. Which factor could be responsible for this microevolution? A. Stabilizing selection B. Founder effect C. Gene mutation D. Bottleneck effect

[Free] Describe how biological diversity is increased by the origin of new species and how it is decreased by the natural process of extinction.

[Free] True or False: Pumpkins only come in one color, orange. A. True B. False

[Free] How much of a pumpkin is actually water?

[Free] What are the specialized cells in animal bodies?

[Free] The theory of eugenics proposes that improvement of the human race can best be obtained by __________.

[Free] If two organisms are in the same phylum, which other classification category must they also share? A. Class B. Order C. Kingdom

[Free] What would happen if the cell membrane became impermeable instead of selectively permeable? Could the cell remain alive?

[Free] Use the term "selectively permeable" in a sentence that demonstrates its meaning.

[Free] What contribution did Jonas Salk make to science in the 1950s?