Freshwater Ecosystems and Their Unique Features

The video explores freshwater ecosystems, focusing on streams, rivers, ponds, lakes, and wetlands. It explains the characteristics of each, such as salinity, water movement, and the types of life they support. Streams and rivers are dynamic, with tributaries and diverse life forms. Ponds and lakes have distinct zones and less water movement. Wetlands are categorized into marshes and swamps, each with unique vegetation. The video concludes with a recap of these ecosystems.

What is a defining characteristic of freshwater ecosystems?

• Connection to the ocean

• High salinity

• Presence of coral reefs

• Low salinity

What is a tributary?

• A type of fish

• A plant found in rivers

• A large river

• A stream that joins a larger stream

Which of the following is an abiotic factor in streams and rivers?

• Water movement speed

• Plant types

• Fish species

• Algae presence

What is the primary source of water for streams and rivers?

• Ocean tides

• Melting ice or snow

• Rainforests

• Desert springs

What distinguishes a pond from a lake?

• Ponds are always larger

• Lakes have more fish

• Ponds are connected to the ocean

• There is no scientific size distinction

Which zone of a lake is found near the shore?

• Surface zone

• Littoral zone

• Deep water zone

• Open water zone

What is a marsh?

• A wetland with trees

• A deep water zone in lakes

• A treeless wetland with grasses

• A type of river

What type of wetland is characterized by the presence of trees and vines?

• Marsh

• Lake

• Swamp

• Pond

Which of the following is NOT a characteristic of wetlands?

• High soil moisture

• Sometimes underwater

• Always dry

• Supports diverse plant life