Name _________________________________ Section ...



Name _________________________________ Section _________ Date ________________________

Admit Slip: As always you have very limited amount of time in which to complete this task. Do not waste your time talking to other students or standing/walking around looking to borrow a pen/pencil. You should come to class ready to learn.

1. Which pair of structures are homologous?

a. wing of an insect and wing of a bird

b. tentacle of a hydra and flipper of a whale

c. front leg of an insect and bones in the leg of a human

d. bones in the front leg of a dog and bones in the wing of a bat

2. The separation of a small group of individuals from the main population is known as

a. chromosomal mutation

b. fossil formation

c. geographic isolation

d. reduction division

3. The term “evolution” is best described as

a. a process of change in a population through time

b. a process by which organisms become extinct

c. the reproductive isolation of members of certain species

d. the replacement of one community by another

4. A key concept in the modern theory of evolution explains

a. how new organs arise according to the needs of an organism

b. how variations occur within a species

c. the continued increase in the human population

d. the presence of asexual reproduction within a species

5. When penicillin was first introduced, it was very effective in destroying most of the bacteria that cause gonorrhea. Today, certain varieties of this bacterium are resistant to penicillin. Which statement best explains the appearance of these resistant varieties?

a. Penicillin stimulated the bacteria to become resistant, and this resistance was passed to the offspring.

b. Penicillin killed the susceptible bacteria, while naturally resistant varieties survived and reproduced.

c. Penicillin used today is not as strong as the penicillin used when it was first introduced.

d. Penicillin stimulated the production of antigens in the resistant bacteria.

6. Some scientists suggest that the mass extinction of dinosaurs resulted from sudden global

weather changes caused by the impact of an asteroid on Earth. This event most likely promoted the evolution of new species of animals. These ideas best support the concept of

a. punctuated equilibrium

b. use and disuse

c. gradualism

d. geographic isolation

7. A group of biology students participated in a prey-predator laboratory investigation. Fifty green bean seeds and 50 white bean seeds, both representing prey, were scattered in a 25 square-meter area of the school lawn. Three students representing predators were then given 30 seconds to search the area and collect the “prey.” This procedure was repeated five times. Using 2 or more complete sentences, state the hypothesis being tested in this activity.

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8.

9. [pic]

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10. In your own words define evolution

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11. [pic][pic]

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