Figure 2.11BThe dashed line in the accompanying figure represents a(n) ____.

Species that have been introduced into an ecosystem in which they did not evolve are called _______________. 

In the chemical shorthand, 14C, the 14 represents the number of ____.

The process by which the first cell of a new individual gives rise to a multicell adult is called _______.

Energy sources are needed for which of the following processes?I. ReproductionII. GrowthIII. Development

Classification. The following are important terms relating to water’s special properties. Answer the questions below by matching the descriptions with the most appropriate word.

The most inclusive level of organization is exemplified by which of the following?

The portion of the earth’s surface that is composed of salt water (marine) is 

The 8 major terrestrial biomes are distinguished from each other by ___________________________________.

Food webs are generally better than food chains because they account for multiple feeding interactions between species.