21. Evolution

Which of the following best explains how bird bones are adapted for flight?

Which of the following is an accurate statement regarding human evolution?

What does evolutionary fitness measure?

The most recent common ancestor shared only by gymnosperms and angiosperms is represented by which of the following groups?

Which of these characteristics contributed most to vertebrate success in relatively dry environments?

Which of the following supports the hypothesis of common descent?

In the context of evolution, what does the phrase 'unity and diversity of life' refer to?

Why are molecular clocks important in the construction of cladograms?

Which adaptation was crucial for reptiles to successfully colonize dry land?

Why have plants in the alpine biome adapted to survive on limited nutrients?

How did the formation of the ozone layer contribute to the existence of life on Earth?

A population of zooplankton is exposed to a small number of predatory fish that feed on the larger-sized (adult) zooplankton. Which of the following predictions would most likely occur based on the principles of natural selection?

After plants first moved to land, which of the following events occurred next in the evolutionary timeline?

What does the wide variety of different types of animal eyes represent in the context of evolution?

Because he was well aware of the effect his theory of evolution would have on the public and on the Church of England, Darwin delayed publishing his work for several decades while he gathered additional evidence. After invoking selective breeding of domesticated species as evidence that groups of organisms are capable of change, he then proposed that natural populations can change as well. On which two lines of evidence did he base this proposal?