1. Introduction to Biology

How are the platypus’s bill and feet specially adapted for survival in their environment?

What determines how 'fit' an organism is in the context of natural selection?

Which of the following best describes the process of natural selection over time?

Which of the following prey, when consumed by the elf owl, would classify it as a tertiary consumer?

Which of the following best describes the effect of natural selection?

When selection operates to eliminate intermediate phenotypes, it is referred to as:

Of the scenarios below, which represents the occurrence of evolution at its smallest scale?

Which of the following is a necessary condition for evolution by natural selection to occur in a population?

Which of the following lists the correct order of major events in evolutionary history, from earliest to most recent?

Which of the following is an example of a pioneer species in ecological succession?

According to the punctuated equilibria model, which of the following best describes the pattern of evolutionary change in species?

Which of the following best describes the process of natural selection as explained by the Amoeba Sisters?

Many people have a tendency to gorge on rich, fatty foods. How could such a preference have evolved according to the principles of natural selection?

The species on the Galápagos Islands had no contact with what for millions of years?

Why would having the enzyme lactase as an adult be considered an evolutionary advantage?