Reading | Question 1 of 10

Which of the sentences below best expresses the essential information in the highlighted sentence in the passage? Incorrect choices change the meaning in important ways for leave out essential information.

  • The hundreds of different species of animals Forbes collected fell into eight distinct groups, each associated with a different depth zone.
  • Forbes realized that depth zones, like elevation zones, contain hundreds of different species.
  • By collecting hundreds of different animals on land and sea, Forbes discovered that there were eight elevation zones and eight depth zones.
  • In addition to collecting different species of animals in eight ocean zones, Forbes collected different species of plants in eight mountain zones.
Early Ideas About Deep-sea Biology