Characteristics of Aquatic Ecosystems
These are also aquatic organisms
What are decomposers?
The region near the bottom of a pond, lake or ocean which is inhabited by decomposers, insect larvae, and clams.
What is the benthic zone?
There are several kinds of marshes, each of which is characterized by its _____.
What is salinity?
The two main types of freshwater wetlands
What are Marshes and Swamps?
A river changes with the _______ through which it flows
What is land and climate?
Swim actively in open water, independent of currents
What is nekton?
A shallow zone in a freshwater habitat where light reaches the bottom and nurtures plants and aquatic life is diverse and abundant
What is the littoral zone?
Freshwater swamps are the ideal habitat for amphibians because of the _____.
What is moist environment?
Wetlands act as _____ that absorb and remove pollutants from the water.
What are filters?
Wetlands were previously considered to be ____ that provide breeding grounds for insects
What are Wastelands?
Bottom-dwelling organisms of the sea or ocean and are often attached to hard surfaces
What is benthos
Some plants are ____ underwater with their upper leaves and stems above water
What is rooted in the mud?
The benthic zones of marshes are _____ and contain plants, numerous types of decomposers, and scavengers.
What is nutrient rich?
Marshes contain non-woody plants such as _____.
What are cattails?
In and near the headwater, mosses anchor themselves to rocks by using rootlike structures called _____.
What are rhizoids?
the mass of mostly microscopic organisms that float or drift freely in the water, and can be microscopic animals called zooplankton or microscopic plants called phytoplankton
What is plankton?
An increase in the amount of nutrients, such as nitrates, in an aquatic ecosystem
What is eutrophication?
Swamps occur on _____ often near streams and are dominated by woody shrubs or water loving trees
What is flat,poorly drained, wooded land?
Swamps are dominated by woody plants such as _____.
What are flood tolerant trees and shrubs?
Aquatic ecosystems that contain several types of organisms are grouped by their _____
What is location and adaptations?
A lake that has large amounts of plant growth due to nutrients is known as a _____
What are Eutrophic lakes?
Brackish marshes have _____ while salt marshes contain water that is as salty as the ocean.
What is freshwater?
These areas _____ for native and migratory wildlife in addition to feeding and spawning for many freshwater game fish.
What is provide a home?
Industries use river water in _____
What is homes, manufacturing, and disposal for wastes?