Lecture: 7.1: Freshwater Ecosystems

Open Ended

What is ONE factor that determines where different organisms live in aquatic ecosystems?

Multiple Choice

Which of the following is an example of a nekton?

• Plankton (phytoplankton or zooplankton)

• Bottom-dwellers (worms, barnacles, etc.)

• Free swimmers (fish, turtles, whales)

Multiple Choice

The nutrient rich zone near the shore where emerging plants grow is called the:

• Littoral Zone

• Benthic Zone

Multiple Choice

Marshes and swamps are examples of...

• Mangroves

• Rivers

• Wetlands

• Eutrophication

Open Ended

What is one threat to river systems?