EVOLUTION - M\C QUESTIONS PART 3

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PRACTICE EXAM BOOKLET PART 3 (1.31 - 1.38)

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1.31 Which ONE of the following characteristics applies to bipedal organsims? *

A more backwards position of the foramen magnum

A short, narrow pelvis

A long, wide pelvis

An S-shaped spine

1.32 Which ONE of the following statements about biodiversity is CORRECT? *

Speciation increases biodiversity

Biodiversity is the number of organisms in a population

Extinction increases biodiversity

Speciation and extinction have no effect on biodiversity

1.33 Refer to the information in the table below. Which statements describe the characteristics of discontinuous variation? *

P, Q and S only

P, R and S only

Q, R and S only

P, Q, R and S

1.34 The graphs below show the effect of two antibiotics, P and Q, on two different species of bacteria, R and S. What conclusion can be drawn from the graphs? *

Bacteria R is less resistant to antibiotic P than Q

Bacteria R is more resistant to antibiotic P than Q

Antibiotic Q is equally effective on bacteria R and S

Antibiotic P is equally effective on bacteria R and S

1.35 Which ONE of the following refers to a gradual change in the structure of organisms over time? *

Natural selection

Mutation

Evolution

Speciation

1.36 *

1.37 The theory of evolution has been supported by a comparative study of the structure of vertebrate forelimbs from the fossil record. Which ONE of the following represents the statement above? *

Genetic evidence

Modification by descent

Natural selection

Biogeography

1.38 Use the information in the table below to answer the following question.... What is the ratio between the rate of extinction from 1500 to 1900 compared to the rate of extinction from 1900 to 2000. *

1 : 20

1 : 2

2 : 1

20 : 1

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