natural community that regulates itself through the interaction of living things and non living things

study of the relationship between living organisms and their environment.  It examines the interaction of organisms with one another and with the nonliving components in the environment.

any water-based environment in which the biotic components interact with the abiotic components

living things that affect the aquatic environment such as plants and animals

aquatic plants and animals drifting freely; some are producers, while others are consumers

larger, free swimming aquatic organisms

bottom-dwelling organisms; many are scavengers or decomposers

Group the organisms according to their classification

plants that grow underwater

grow in water but their stems, leaves, or flowers rise to the surface of the water.

have leaves that float on the surface of the water

Group the plants according to their types

nonliving things that affects the aquatic ecosystem such as light, oxygen, temperature, dissolved salt are called

how many percent of aquatic ecosystem is considered as freshwater?

This is lakes and ponds' zone where most organisms live.  It is the topmost  or the shallow-water zone of ponds and lakes.

This is a well-lighted zone that is why producers like algae and plankton, float near the surface.  This is open-water zone away from the shore.

Very deep lakes have an area where light is limited or is not present at all

This zone is much colder and denser because little light reaches the bottom.  The bottom part below the open water zone is called.

These are moving bodies of freshwater coming from a source such as springs or lakes, and travel all the way to the mouth such as the ocean.

Oxygen level is greater on faster-moving water because the air mixes as water flows.

Carp requires more oxygen

They are found in areas between land and water, where water is completely or partially shallow.  The best examples are marshes, swamps, and bogs.

They contain significant amount of dissolved salts

marine ecosystem is also called

saltwater ecosystem covers how many part of Earth's surface

It is where the ocean meets the land.  It is the shallowest part of the marine ecosystem.  It is either submerged in water or exposed to air depending on the tides and waves.

The water further from the shore where majority of marine animals live because it is where oxygen is high and pressure is low.

It is beyond the neritic zone.  It is basically the open ocean and beigns when the water is over 200 meters deep.  This zone contains volcanoes and deep trenches

It is the midnight zone, it receives little to no sunlight.

directly below the bathyal zone where it never receives daylight and is marked by its cold dark conditions.

zone that includes the entire ocean floor.  It begins at the intertidal zone and extends downward to the ocean.  This zone is very cold and gets no sunlight.

CLASSIFY ANIMALS LIVING IN DIFFERENT ZONES