Which of the following describes the aphotic zone in an aquatic ecosystem? The zone where no sunlight penetrates and photosynthesis cannot occur.
What describes the aphotic zone?
The aphotic zone (aphotic from Greek prefix ἀ- + φῶς “without light”) is the portion of a lake or ocean where there is little or no sunlight. It is formally defined as the depths beyond which less than 1 percent of sunlight penetrates.
What are the zones of aquatic ecosystems?
The zones discussed are the Littoral Zone, Limnetic Zone, Profundal Zone, Euphotic Zone, and Benthic Zone. The Littoral Zone is the shore area of the lake or pond. The littoral zone consists of the area from the dry land sloping to the open water and can be very narrow or very wide.
Which zone of an aquatic ecosystem has more life?
A zone where no sunlight penetrates. Which zone of an aquatic ecosystem tends to have more life, both producers and consumers? The photic zone.
Which zone an aquatic ecosystem tends to have the most life both producers and consumers?
Which zone of an aquatic ecosystem tends to have more life, both producers and consumers? The photic zone.
What is the aphotic zone in the ocean?
The bottommost, or aphotic, zone is the region of perpetual darkness that lies beneath the photic zone and includes most of the ocean waters.
What kind of animals live in the aphotic zone?
Examples of aphotic zone animals include algae, anemones, anglerfish, arrow worm, cookie-cutter shark, copepods, crabs and other crustaceans, ctenophores, dinoflagellates, fangtooth, lanternfish (Myctophids), mussels, nudibranchs, some squid (like the vampire squid), segmented worms, siphonophores, swallower fish, …
What are the 4 aquatic ecosystems?
Wetlands, rivers, lakes, and coastal estuaries are all aquatic ecosystems—critical elements of Earth’s dynamic processes and essential to human economies and health. Wetlands connect land and water, serving as natural filters, reducing pollution, controlling floods, and acting as nurseries for many aquatic species.
What are the 3 zones of an ocean?
The ocean is generally divided into three zones which are named based on the amount of sunlight they receive: the euphotic, dysphotic, and aphotic zones.
- Euphotic Zone (Sunlight Zone or Epipelagic Zone) …
- Dysphotic Zone (Twilight Zone or Mesopelagic Zone) …
- Aphotic Zone (Bathypelagic, Abyssopelagic, and Hadopelagic Zones)
At what depth does the Aphotic zone begin?
The aphotic zone exists in depths below 1,000 meters (3,280 feet). Sunlight does not penetrate to these depths and the zone is bathed in darkness.
Which aquatic zone is most important?
The coastal zone makes up only 10% of the oceanic environment, but it contains 90% of all marine species. Coastal zones are the most nutrient-rich life zones of the oceans. Coastal zones can be divided up into several different life zones.
What distinguishes the photic zone from the aphotic zone in an aquatic ecosystem?
what distinguishes the photic zone from the aphotic zone in an aquatic ecosystem? photic zone is the region where sunlight and photosynthesis occurs. aphotic zone is dark and photosythesis cannot occur.
What are some aquatic ecosystems in the ocean?
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.