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1. In the region where both species co-occur the northern snuffle has a relatively wide and short snuffle whereas the southern snuffle has a long and relatively thin snuffle. In areas where they occur alone the morphology of their snuffle is fairly similar. This observation demonstrates what?
a. The competitive exclusion principle
b. Character displacement
c. Un-stable coexistence
d. Competitive release
e. Mechanism of coexistence
2. The researchers have determined that the mechanism allowing the coexistence of the two species is resource partitioning, with the axis of environmental heterogeneity being gradient in food types: grasses and tree leaves and the trade-off being that the southern snuffle is a more efficient forager on tree leaves due to its long and thin snuffle while the northern snuffle is a more efficient forager on grasses due to its short and thick snuffle. Based on all you know about the Ecology of the two species, this mechanism can be classified as a non-equilibrium mechanism of coexistence.
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The effective population sizes were recorded for population over five generations; 100, 120, 17, 40, 88. Estimate the harmonic mean of effective population size for this population?
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Early in development, most human cells turn off expression of essential component of telomerase, enzyme responsible for addition of telomere repeat sequences to ends of chromosomes.
A couple's only child has Down Syndrome. An examination of the child's karyotype reveals that he has 46 chromosomes per cell, but that one chromosome is unusually big,
It's Thanksgiving day at the Simpsons' and Bart has removed the labels from the olive oil (primarily monounsaturated fatty acids) and canola oil (primarily polyunsaturated fatty acids) and no one can figure out which bottle is which.
Consider any natural populations that might be out of Hardy-Weinberg equilibrium? You need not to test this with statistics. Just name the species and explain the population.
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