EVOLUTION - M\C QUESTIONS PART 2

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EXAM PRACTICE BOOKLET PART 2 (Q 1.16 - 1.30)

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1.16 The list below describes features of evolutionary theories. Answer the Question that follows: *

1.17 The diagram below shows a phylogenetic tree of some primates. According to the phylogenetic tree, the most recent common ancestor of ... *

humans and chimpanzees became extinct 2 million years ago

humans and gorillas became extinct 15 million years ago

humans and chimpanzees became extinct 6 million years ago

gorillas and chimpanzees became extinct 2 million years ago

1.18 Charles Darwin based the theory of evolution through natural selection on many observations. Which ONE of his observations is represented in the diagram below? *

Limited environmental resources

Populations remain stable over time

Individuals within a population may vary widely

Only the fittest will survive

1.19 Antibiotic resistance in bacteria is an example of evolution in present times. Which ONE of the following is a CORRECT explanation for this evolution? *

The bacteria acquire resistance to the antibiotic by being exposed to it.

There is variation in the bacteria and the resistant bacteria survive.

The greater the number of bacteria, the higher the resistance.

The greater the number of bacteria, the lower the resistance.

1.20 Three related species, X, Y and Z, share a common ancestor. Species Y and Z share the MOST RECENT common ancestor. Which phylogenetic tree most accurately represents their evolutionary relationship? *

1.21 Which ONE of the following is a reproductive isolating mechanism? *

Breeding at different times of the year.

Same pollinators for different species of plants.

Absence of a geographic barrier.

Cloning

1.22 Evidence supporting the evolution theory is obtained by studying the structure of vertebrate forelimbs. This type of evidence for evolution is best described as ... *

biogeography

modification by descent

DNA evidence

genetic evidence

1.23 Which ONE of the following is the correct genus and scientist for the discovery of the 'Taung Child' fossil? *

Ardipithecus; Raymond Dart

Ardipithecus; Tim White

Australopithecus; Raymond Dart

Australopithecus; Tim White

1.24 Different frogs, which all belong to the genus Lithobates, are found in the same forest. The graph below shows their mating activity. Based on the information, What kind of isolating mechanism is most likely keeping the bullfrogs and wood frogs as separate species? *