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Practice Reading: Multiple Choice, Single Answer ID: #44221 Basilosaurus
Instructions ›
Read the text and answer the multiple-choice question by selecting the correct response. Only one response is correct.
In a discovery, many incomplete skeletons were found but they included, for the first time in an archaeocyte, a complete hind leg that features a foot with three tiny toes. Such legs would have been far too small to have supported the 50-foot-long Basilosaurus on land. Basilosaurus was undoubtedly a fully marine whale with possibly non-functional, or vestigial, hind legs.

The hind leg of Basilosaurus was a significant find because it showed that Basilosaurus

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Option 4: "could not have walked on land"

Explanation: The text states that the hind leg of Basilosaurus was too small to support its large body on land, indicating that it could not have walked on land. This directly supports the claim made in this option.

Option 1: "lived later than Ambulocetus natans"

Explanation: The text does not provide any information regarding the timeline of Basilosaurus in relation to Ambulocetus natans. Therefore, this option is not supported by the text.

Option 2: "lived at the same time as Pakicetus"

Explanation: Similar to Option 1, the text does not mention any temporal relationship between Basilosaurus and Pakicetus, making this option unsupported.

Option 3: "was able to swim well"

Explanation: While Basilosaurus is described as a fully marine whale, the text does not specifically state that the hind leg indicates swimming ability. Thus, this option lacks direct support from the text.

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