AP Bio Unit 7 Evolution

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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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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What hypothesis suggests that life on Earth started from inorganic materials reacting to make organic ones?

• Abiogenesis

• Exogenesis

• Adaptation

• Evolution

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Which organism has only these traits: limbs and live birth?

• Pallid Gerbil

• Fennec Fox

• Dromedary Camel

• Nubian Ibex

• White Throated Bee Eater

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Which of these best explains natural selection?

• The giraffe's neck grew longer as it reached for leaves in tall trees

• The short-neck giraffe will avoid tall plants

• The giraffes with long necks will survive and reproduce more than those with short necks

• The mutation rate in the short necked giraffes will lead to their change into long-necked giraffes

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Which of these best explains what is occurring in this image?

• The intermediate phenotype is being selected for

• Selection is favoring the extreme phenotypes

• The intermediate phenotype is being selected against

• The population is drifting toward one end of the phenotypic spectrum due to selection

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Which of these best explains how both of these distantly related organisms evolved the same ability to echolocate?

• They live in environments with similar pressures

• They both experienced the exact same mutation in different settings

• Their food source is similar, which influenced the evolution of this ability

• They are actually closely related to one another

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All of these plant variations exist because of human influence. Which term best describes this?

• Genetic Drift

• Natural Selection

• Disruptive Selection

• Artificial Selection

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Which of the following best describes the concept of natural selection?

• A process where organisms better adapted to their environment tend to survive and produce more offspring

• A random change in the DNA sequence of an organism

• The movement of individuals from one population to another

• The intentional breeding of organisms to produce desired traits

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What is the significance of the fossil record in understanding evolution?

• It provides direct evidence of past life forms and their changes over time

• It shows that all species have remained unchanged over millions of years

• It proves that evolution is a slow and gradual process

• It indicates that all life originated from a single ancestor

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