Krohn's Bio: Evolution

What is the definition of evolution?

• The creation of a new species

• The changing of apes into man

• A change in allele frequency across generations

• The process of an organism becoming adapted to its environment

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Which statement(s) about evolution below is false?

• It is unaccepted by science because of a lack of evidence

• Man evolved from chimpanzees

• Evolution will eventually end when a perfect organism is created

• Humans are done evolving

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A species of toad produces a pheromone which is able to repel predators while also attracting females to mate with during the spring. What type of selection drove the creation of this pheromone?

• Ecological Selection

• Sexual Selection

• Artificial Selection

• Chemical Selection

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A herd of elephants uses their trunks to get food more than another heard. Since they are using their trunks so much they get longer and stronger. Then those elephants pass on long strong trunk genes to their kids because they used them so much. Whose idea is this and is it right or wrong?

• Lemark; wrong

• Lemark; right

• Darwin; wrong

• Darwin; right

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Which line of evidence is shown when we look a similar parts between organisms that have a common ancestor? Like the arm bones in mammals.

• Embryology

• Vestigial Organs

• Homologous Structures

• Fossil Record

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In a group of penguins the small ones freeze to death and the large ones starve to death. Which type of selection curve is this?

• Stabilizing

• Disruptive

• Directional

• Combinative

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A bird has mutated a crest of feathers to attract mates, but is a bit of a prude and will only mate with singing birds. What type of isolation and evolutionary selection is this?

• Sexual Selection

• Ecological Selection

• Behavioral Isolation

• Mechanical Isolation

• Gametic Isolation

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What things below are pieces of evidence for Endosymbiotic Theory?

• Mitochondria has its own DNA separate from the cell

• Mitochondrial DNA is in the shape of a circle like bacteria

• Mitochondria divide using binary fission like prokaryotes

• Mitochondria consume nutrients like bacteria

• Mitochondria Move through the cell like prokaryotes

What type of evolution can be seen when we compare bats, eagles, and flying fish?

• Convergent Evolution

• Divergent Evolution

• Comparative Evolution

• Flight Evolution

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Which things are automorphies on this cladogram.

• Limbs

• Live Birth

• Hooves

• Bald Head

• Binocular Vision

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