Full Answer
What is the marine ecosystem dominated by?
marine ecosystem dominated by trees with stilt-like roots mangrove swamps factor that determines where aquatic organisms live oxygen threat to ocean organisms overfishing marine ecosystem dominated by marsh grasses
What is the difference between marine ecosystem and wetlands?
marine ecosystem dominated by trees with stilt-like roots mangrove swamps factor that determines where aquatic organisms live oxygen threat to ocean organisms overfishing marine ecosystem dominated by marsh grasses salt marsh bottom of a pond or lake benthic zone use stinging tentacles to capture prey corals environmental function of wetlands
What is a mangrove ecosystem?
marine ecosystem dominated by trees with stilt-like roots mangrove swamps factor that determines where aquatic organisms live oxygen threat to ocean organisms overfishing
Which ecosystem is dominated by low-growing shrubs and grasses?
These ecosystems are dominated by low-growing shrubs and grasses. Another coastal ecosystem is the mangrove forest. Mangrove forests are found in tropical areas. Thesee ecosystems frequently flood with ocean water, submerging the roots of mangrove trees. The root systems of mangroves filter out salt and sit above ground to access oxygen.
What are the two main types of freshwater wetlands quizlet?
There are two main types- marshes and swamps. A type of freshwater wetland which contains nonwoody plants such as cat tails.
What type of lake has a large amount of plant growth due to nutrients?
eutrophic lakeA lake that has large amounts of plant growth due to nutrients is known as a eutrophic lake. Lakes naturally become eutrophic over a long period of time. However, eutrophication can be accelerated by runoff, such as rain, that can carry sewage, fertilizers, or animal wastes from land into bodies of water.
Where do most of the nutrients in an Arctic ecosystem come from?
Growth of the tiny plants at the base of marine food chains, microalgae, in the Arctic Ocean is fuelled by nutrient inputs from the Pacific and Atlantic Oceans, and from rivers around the Arctic Ocean rim.
What are free swimming organisms called?
nekton, the assemblage of pelagic animals that swim freely, independent of water motion or wind.
What are oligotrophic and eutrophic lakes?
Oligotrophic lakes generally host very little or no aquatic vegetation and are relatively clear, while eutrophic lakes tend to host large quantities of organisms, including algal blooms. Each trophic class supports different types of fish and other organisms, as well.
What is the difference between an oligotrophic lake and eutrophic lake?
Eutrophic lakes are relatively shallow in depth. Oligotrophic lakes have fewer phosphates and nitrates present as nutrients leading to high levels of oxygen present and thereby these lakes are relatively suitable for aquatic organisms. Eutrophic lakes have nutrients like phosphates and nitrates in large quantities.
What is the polar sea ecosystem?
The Arctic Ocean has the most extensive shelves of all oceans, covering about 50% of its total area. It comprises diverse ecosystems such as unique millennia-old ice shelves, multi-year sea ice, cold seeps and hot vents, and their associated communities.
What is the Arctic ecosystem like?
This region is characterized by stressful conditions as a result of extreme cold, low precipitation, a limited growing season (50–90 days) and virtually no sunlight throughout the winter. The Arctic consists of taiga (or boreal forest) and tundra biomes, which also dominate very high elevations, even in the tropics.
Which organisms produces most of the food in an aquatic ecosystem?
Environmental Chapter 7 TestABWhat organism produces most of the food in an aquatic ecosystem?phytoplanktonThe arrangement of organism in the open ocean is determined by what?amount of nutrients and sunlight that are available51 more rows
What is nekton and benthos?
Nekton are aquatic animals that can move on their own by “swimming” through the water. They may live in the photic or aphotic zone. They feed on plankton or other nekton. Examples of nekton include fish and shrimp. Benthos are aquatic organisms that crawl in sediments at the bottom of a body of water.
What are the 3 types of plankton?
The three types of plankton are phytoplankton (small plants that photosynthesize), zooplankton (small and/or weak animals), and protists (plankton that contain chloroplasts but can also eat other unicellular organisms).
What's an example of benthos?
The word benthos comes from a Greek term meaning “depths of the sea.” Benthic communities are complex and include a wide range of animals, plants and bacteria from all levels of the food web. Clams, worms, oysters, shrimp-like crustaceans and mussels are all examples of benthic organisms.
What are the 2 main types of aquatic biomes?
The aquatic biome is the largest of all the biomes, covering about 75 percent of Earth's surface. This biome is usually divided into two categories: freshwater and marine.
Which best describes the health of a lake used as a source of freshwater?
Which best determines the health of a lake used as a source of freshwater? A measure of the natural populations of algae, plants, fish, and other wildlife provides evidence of the health of a body of water.
Where do plants obtain nutrients?
Mineral nutrients come from the soil. These nutrients are absorbed by the plants roots when uptaking water. Mineral nutrients are broken up into macronutrients and micronutrients. The most important primary macronutrients for plants are nitrogen (N), phosphorus (P), and potassium (K).
Which would most likely happen if too many nutrients entered an estuary?
Plants and animals need nutrients, or “food,” such as nitrogen and phosphorus, in order to grow. However, if an estuary has too many nutrients, too much algae will grow, creating algae blooms. These algae blooms block sunlight and can suffocate fish and plant life by using up valuable oxygen from the water.
Where are photosynthetic organisms found?
Photosynthetic organisms are found mainly in shallow water due to the availability of
Why are estuaries so productive?
Estuaries are extremely productive ecosystems because they continually receive fresh nutrients from:
What are the different types of marine ecosystems?
Although there is some disagreement, several types of marine ecosystems are largely agreed on: estuaries, salt marshes, mangrove forests, coral reefs, the open ocean, and the deep-sea ocean. An estuary is a coastal zone where oceans meets rivers. Here, nutrients and salts from the ocean mix with those from the river in regions sheltered ...
What are the factors that make up a marine ecosystem?
Marine ecosystems are defined by their unique biotic (living) and abiotic (nonliving) factors. Biotic factors include plants, animals, and microbes; important abiotic factors include the amount ...
What are the ecosystems that live in the open ocean?
At the surface of the ocean, the euphotic zone, the ecosystem receives plenty of light and oxygen, is fairly warm, and supports many photosynthetic organisms. Many of the organisms that we associate with marine ecosystems, such as whales, dolphins, octopi, and sharks , live in the open ocean.
What are the organisms that live in coral reefs?
Coral reefs are extremely diverse ecosystems that host sponges, crustaceans, mollusks, fish, turtles, sharks, dolphins, and many more creatures. By some counts, coral reefs can account for a quarter of all ocean species.
How do organisms survive in deep sea environments?
Organisms living in deep-sea ecosystems within the dysphotic and aphotic zones have unusual adaptations that help them survive in these challenging environments. Some organisms have extremely large mouths that allow them to catch whatever nutrients fall from shallower ocean depths. Others have adapted to get their energy via chemosynthesis of chemicals from hydrothermal vents.
How do coral reefs get their energy?
Others have adapted to get their energy via chemosynthesis of chemicals from hydrothermal vents. Coral reefs are a diverse form of marine ecosystem, which in total may account for a quarter of all ocean species.
How far down is the euphotic zone?
The topmost part of a marine ecosystem is the euphotic zone, extending down as far as 200 meters (656 feet) below the surface. At this depth, there is sufficient light for regular photosynthetic activity.
Answer
Dead plankton falls to the bottom of the ocean and over centuries becomes oil from high pressure and heat
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