All Old Order Amish families from Lancaster County with Ellis-van Creveld syndrome can trace their genealogies to Mr. and Mrs. Samuel King, who immigrated to Lancaster County in 1744. This is an example of __________
A) founder effect
B) mutation
C) gene flow
D) Hardy-Weinberg equilibrium
E) bottleneck effect
A
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In your own multicellular body, cell with functions have different DNA.
a. true b. false
What is the age structure diagram for a population that has a birthrate higher than its death rate and larger population in prereproductive ages than in reproductive and postreproductive ages?
A. This population can expect to see a pyramid-shaped diagram that will cause the population to grow in the near future. B. This population can expect to see a pyramid-shaped diagram that will cause the population to decrease in the future. C. This population can expect to see a bell-shaped diagram that will cause the population to grow in the future. D. This population can expect to move into a logistic growth curve in the near future. E. This population can expect to see an urn-shaped diagram that will cause the population to grow in the future.
Reservoirs include
A. water. B. humans. C. soil. D. animals. E. All of these choices are correct.
If you were to travel to a region where rice is grown in paddies, you would see lots of the water fern Azolla growing in the water. A farmer would tell you this is done because Azolla is considered a “natural fertilizer. Explain why this is the case.
What will be an ideal response?