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Cotton-topped tamarins are small primates with tufts of long white hair on their heads. While studying these animals, you notice that males with longer hair get more opportunities to mate and father more offspring. To test the hypothesis that having longer hair is adaptive in these males, you should FIRST ________.

In a small population of alpine foxes, you observe increased ear length over a 10-year period. Can you definitively conclude that increase in ear length is advantageous in this population?

Large male horned dung beetles, Onthophagus taurus, use their horns as weapons in fights with rival males over ownership of breeding tunnels containing females. Females excavate (dig) tunnels beneath fresh dung (manure) piles where they mate with the males, and then lay their eggs. The use of the horns by the males in contest for the breeding tunnels is an example of: I:   intersexual selectionII:  intrasexual selectionIII: sexual selection

Darwin and Wallace’s theory of evolution by natural selection was revolutionary because it:

Claytonia virginica is a woodland spring herb with flowers that vary from white to pale pink to bright pink. Slugs prefer to eat pink-flowering plants over white-flowering plants, and plants experiencing this severe herbivory are more likely to die. The bees that pollinate this plant also prefer pink to white flowers, so Claytonia with pink flowers have greater relative fruit set (a measure of fitness) than Claytonia with white flowers. A researcher observes that the percentage of different flower colors remains stable in the study population from year to year. With no other information, if the researcher removes all slugs from the study population, what do you expect to happen to the distribution of flower colors in the population over time?

Which of the following is NOT true regarding antibiotics and antibiotic resistance?

People with cystic fibrosis (CF) are homozygous recessive for mutations in a gene known as CFTR. These mutations cause the CFTR protein to become dysfunctional, and it is unable to move chloride to the cell surface. Ultimately mucus can build up in organs, and in the lungs, the mucus clogs the airways and traps bacteria, leading to infections, inflammation, and respiratory failure. In a human population, if 9 in 10,000 newborn babies are born with CF, what are the expected frequencies of the dominant (A1) and recessive (A2) alleles according to the Hardy-Weinberg model in that population?

Which of the following is/are TRUE regarding the Puerto Rican crested anole? Select all correct answers.

Maurice is a school psychologist who used to be optimistic and very proactive at work. Recently, he has become very cynical toward his clients and “blames the victims” for their own difficulties. Maurice is likely experiencing which form of the developmental model of burnout?

Which term or terms refers to an individual’s sensitivities or internal states that contribute to the occurrences of interfering behavior?