What marine ecosystem is dominated by marsh grasses?

Salt marshes form in estuaries and protected areas or bays where freshwater streams empty into the sea. This zone of mixing between fresh and salt water (known as brackish water) produces a rich and highly productive ecosystem. The dominant grasses in a salt marsh are of the genus Spartina.

Which of the following are marine organisms that use stinging tentacles to capture prey?

Jellyfish are invertebrates that, together with corals, gorgonians and anemones belong to a group called the cnidarians (knidé = nettle, from the Greek). This animal group has stinging cells which they use both to capture their prey and as a form of defense.

What is a wetland dominated by non woody plants?

Wet Meadows. This wetland type includes many abandoned agricultural fields and formerly flooded beaver ponds, wet portions of hayfields, as well as other seasonally flooded or saturated areas where non-woody plants are dominant.

Which ecosystem has the highest level of salinity?

Environmental Chapter 7 Test

Which ecosystem has the highest level of salinity? salt marsh
What is a threat to coral reefs? oil spills, sewage, pesticides
Why doesn’t photosynthesis occur is deep ocean water? there is no sunlight
Plankton forms what part of the food chain? base

Which marine ecosystem supports the least life?


  1. 1 of 2. The deep sea \textbf{The deep sea} The deep sea. is the type of marine ecosystem that do not support lot of life.
  2. 2 of 2. Sunlight do not reach the deep sea. Because of that the deep sea are in constant darkness. Photosynthesis cannot occur in places like that.

What animal is 95 percent water?

This is because jellyfish are about 95 percent water. Fascinating, elegant, and mysterious to watch in the water, take a jellyfish out of the water, and it becomes a much less fascinating blob. This is because jellyfish are about 95 percent water.

What are the three major types of aquatic ecosystems?

There are three basic types of freshwater ecosystems: Lentic (slow moving water, including pools, ponds, and lakes), lotic (faster moving water, for example streams and rivers) and wetlands (areas where the soil is saturated or inundated for at least part of the time).

Why are estuaries very productive ecosystems?

Estuaries are very productive ecosystems because they constantly receive fresh nutrients from the river. the pollutants that damage estuaries are the same pollutants that damage other aquatic ecosystems: sewage, industrial waste, and agricultural run off.

Which ecosystem has lowest salinity?

The ocean around Antarctica has a low salinity of just below 34ppt, and around the Arctic it is down to 30ppt in places.

Which ecosystem has the lowest level of salinity?

Freshwater is defined as having a low salt concentration — usually less than 1%. Plants and animals in freshwater regions are adjusted to the low salt content and would not be able to survive in areas of high salt concentration (i.e., ocean). There are different types of freshwater regions: Ponds and lakes.

What kind of grass grows in salt marsh?

Salt hay is easily recognized by its “cow-licked” appearance in the marsh. Spartina has special glands that enable it to excrete excess salt; an adaptation that well suits it to its coastal environment. Other plants of the salt marsh include black grass, seaside goldenrod and spike grass.

What kind of trees are in Connecticut coastal zone?

Low lying shrubs such as low bush blueberries and black huckleberry. Vines are very characteristic of coastal forest edges and openings including Virginia creeper, poison ivy, grape and greenbriers. Due to intense agricultural and development pressures, Connecticut has very little forest left within the coastal zone.

How are estuaries and salt marshes related to each other?

While estuaries form where ocean meets rivers, salt marshes occur where oceans meets land. These places are rich in nutrients from sediment brought in by the ocean. Marshes are regularly flooded by high tides, making the surrounding ground wet and salty. As a result, the soil is low in oxygen and filled with decomposing matter.

Which is characteristic of salt marshes and mangrove swamps?

Which of the following are characteristic of salt marshes and mangrove swamps? (1) Both provide habitats for wildlife, (2) Both are found along coastal areas, (3) Both are threatened by development Photosynthetic organisms are found mainly in shallow water due to the availability of