1. Introduction to Biology

Suppose a human population exhibits a Type III survivorship curve. Which of the following best describes the characteristics of this population?

In terms of natural selection, which of the following best explains why certain traits become more common in a population over generations?

In the context of natural selection, how might selection favor individuals that call versus those that do not call?

Which of the following best describes how the breakup of Pangaea affected evolution?

Why did approximately 40% of the human population evolve to tolerate lactose into adulthood?

Natural selection is best described as __________.

Which idea is most directly related to Lamarck’s beliefs about evolution?

An unexpected freeze that kills a population of chipmunks is an example of:

Which of the following best defines fitness in the context of natural selection?

One biotic factor that limits the carrying capacity of any habitat is the:

Which of the following best explains why it is generally not advantageous for a predator to prey exclusively on a single prey species?

Which term best describes the idea that each living species has descended from other species over time?

Which of the following is an example of a vestigial structure?

Which of the following is NOT a challenge an organism encounters in the process of natural selection?

Which type of natural selection favors individuals with intermediate phenotypes, resulting in higher fitness compared to those with extreme phenotypes?