In a population with two alleles for a particular genetic locus, B and b, the allele

Place these levels of classification in order from least inclusive to most inclusive: class, domain, family, genus, kingdom, order, phylum, species.

Which of the following is a true statement about Charles Darwin? a. He was the first to discover that living things can change, or evolve. b. He based his theory on the inheritance of acquired traits. c. He proposed natural selection as the mechanism of evolution. d. He was the first to realize that Earth is more than 6,000 years old.

How did the insights of Lyell and other geologists influence Darwins thinking about evolution?

In a population with two alleles for a particular genetic locus, B and b, the allele frequency of B is 0.7. If this population is in HardyWeinberg equilibrium, what is the frequency of heterozygotes? What is the frequency of homozygous dominants? What is the frequency of homozygous recessives?

Define fitness from an evolutionary perspective.

Which of the following processes is the ultimate source of the genetic variation that serves as raw material for evolution? a. sexual reproduction b. mutation c. genetic drift d. natural selection

As a mechanism of evolution, natural selection can be most closely equated with a. random mating. b. genetic drift. c. unequal reproductive success. d. gene flow.

Compare and contrast how the bottleneck effect and the founder effect can lead to genetic drift.

In a particular bird species, individuals with average-sized wings survive severe storms more successfully than other birds in the same population with longer or shorter wings. Of the three general outcomes of natural selection (directional, disruptive, or stabilizing), this example illustrates ______________.

Which of the following statements is (are) true about a population in Hardy-Weinberg equilibrium? (More than one may be true.) a. The population is quite small. b. The population is not evolving. c. Gene flow between the population and surrounding populations does not occur. d. Natural selection is not occurring.

Interpreting Data A population of snails has recently become established in a new region. The snails are preyed on by birds that break the snails open on rocks, eat the soft bodies, and leave the shells. The snails occur in both striped and unstriped forms. In one area, researchers counted both live snails and broken shells. Their data are summarized here: Striped Shells Unstriped Shells Number of live snails 264 296 Number of broken snail shells 486 377 Total 750 673 Based on these data, which snail form is subject to more predation by birds? Predict how the frequencies of striped and unstriped individuals might change over time.

Imagine that the presence or absence of stripes on the snails from the previous question is determined by a single gene locus, with the dominant allele (S) producing striped snails and the recessive allele (s) producing unstriped snails. Combining the data from both the living snails and broken shells, calculate the following: the frequency of the dominant allele, the frequency of the recessive allele, and the number of heterozygotes in the observed groups

To what extent are people in a technological society exempt from natural selection? Explain your answer

What plants and animals have you seen near your home or school? What evolutionary adaptations suit them to their environment?