an individual's attempt to conform to its environment
	a trait that confers a reproductive advantage on the individual possessing it
	the cause of natural selection
	a trait that is quickly integrated into a population
	all of the above

	was the first person to conclude that organisms evolve
	proposed that unused parts of the body deteriorate
	eagerly published his theory before it was well-developed
	proposed natural selection as the mechanism of evolution
	was the first to realize that fossils are remains of ancient organisms

	Darwin
	Larmack
	Lyell
	Cuvier
	Wallace

	pupils of the eyes becoming dilated in low-light conditions
	skin becoming tanned in response to increased UV exposure
	skin color becoming lighter in populations adapting to higher latitudes
	living bones becoming more massive when exposed to regular stress and strain
	none of the above

	Interactions occur between individuals and the environment; therefore, the individual is the smallest unit that can evolve.
	Acquired characteristics cannot be passed on to offspring.
	An adaptation that is useful in one environment may be detrimental in another.
	All of the above are key points of evolution through natural selection.
	None of the above is a key point of evolution through natural selection.

	Lyell
	Wallace
	Cuvier
	Lamarck
	Hutton

	Traits are inherited as discrete particles.
	Earth is very old.
	Populations produce more offspring than their environment can support.
	Organisms compete for limited resources.
	Organisms vary in heritable ways.

	The proportion of mottled fish will increase over time.
	In two generations, all the fish will be mottled.
	There is no way to predict the result.
	As the mottled fish are eaten, more will be produced to fill the gap.
	The ratios will not change.

	comparisons of the body structure and patterning among major groups of animals and plants
	the world distribution of plants and animals
	observations of fossils of different types of organisms buried in distinct layers of Earth
	the comparison of early stages of animal development
	All of the above observations contributed to the idea that populations evolve.

	the more advanced the animal, the more slowly it develops
	embryos of dissimilar organisms, such as sharks and humans, resemble each other
	mutations have a far more dramatic effect on embryos than on adult organisms
	the embryological development of many plants and animals is almost identical
	all animals develop similar embryonic gills