Practice Exam Questions Week 6

Question 1

Among the organisms listed below, which is MOST likely to be fossilized?

jellyfish

earthworm

house flies

clam

Answer 1

Clam

Question 2

The concordance of the two great patterns in the history of life—the branching order of the tree of life and the sequence of forms in the fossil record—is powerful evidence in support of the theory of evolution. Which of the following imaginary examples of evidence would contradict our current understanding of the theory of evolution?

A fossil of a DNA molecule that is older than a fossil of the first fish.

Lack of evidence of a transitional form between fish and tetrapods.

A fossil of a dinosaur footprint in 70-million-year-old rock.

A fossil of a mammal that is older than fossils of the first reptiles.

Answer 2

A fossil of a mammal that is older than fossils of the first reptiles.