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aquatic biomes
questions about freshwater, transition, and marine biomes
| Question | Answer |
|---|---|
| approximate amount of freshwater on earth... and where it is located( 3 places) | about 3%.... most is in glaciers ... 2nd location groundwater and a very small amount in surface water ( lakes, ponds, rivers, streams etc) |
| What freshwater ecosystem has water that flows in one direction ...generally to a larger body of water.., Organisms must withstand constant water currents | rivers and streams |
| an inland body of standing water | lake or pond |
| 3 zones of a lake environment | Littoral, Limnetic, and Profundal |
| Parts of the lake that have the most biodiversity | Littoral and Limnetic zone |
| Part of Lake found in larger lakes with little species diversity and where the bottom dwellers are found | Profundal |
| zone of lake closest to shore where the water is shallow enough to allow sunlight to reach bottom..an area of high photosynthesis and many producers ( algae and aquatic plants) | Littoral |
| The open water zone of a lake that is well lit and has lots of plankton.. Since food is available there are many fish | Limnetic |
| List 5 characteristics of the Profundal zone of a lake ( think about the living conditions) | cold, low in oxygen, the bottom dwellers depend on food to drift down to them... limited light and limited species |
| Zone of lake that is the deepest area of a large lake | Profundal |
| Name two transitional aquatic ecosystems | Wetlands and Estuaries |
| Name 3 types of wetlands | marshes, swamps, and bogs |
| What is special about a bog? | they have decomposing vegetation dominanted by mosses ( peat moss is from bogs) |
| What is an area of land saturated with water that supports aquatic plants | a wetland |
| Wetlands and Estuaries are important environmentally because they are areas well known for | much species diversity |
| an example of a tropical estuary... where do we have one in the United States | mangrove swamp... The everglades is a mangrove swamp |
| Give 2 reasons that estuaries are very important environmentally | they are a nurseries for many marine fish and invertebrates like shrimp.. Waterfowl use them for nesting, feeding and as migration rest areas |
| List the top 3 biomes as far as having diverse ecosystems | Tropical Rain forest, Coral Reef, and Estuaries |
| What is formed when freshwater from a river or stream merges with the salt water from the ocean | Estuary |
| Organisms that eat tiny pieces of organic matter that was produced by decomposition are common in estuaries and are called ? name 3 | detritivores, worms, oysters, and crabs |
| what name is given to tiny pieces of organic matter produced by decomposition | detritis |
| Where is a likely place to find duckweeks, pondlilies, cattails, mangroves, and willows | a wet lands |
| the narrow band where the ocean meets the land is called the | intertidal zone |
| what is a big challenge for organisms in the intertidal zone | they are constantly being submerged in water and exposed to air as the tides and waves affect the area |
| Two major zones of the open ocean deal with the abiotic factor of light... they are called the ____ and ____ zones ( explain) | photic and aphotic zone... photic zone with light and aphotic without light ... and the depth increases the amount of light decreases |
| What is the ocean bottom called... it is found in the shallow areas and deep areas.. what is it made of? | benthic zone... sand, silt and dead organisms |
| What happens to species diversity as you go deeper and deeper into the ocean... give one exception to this rule | as you go deeper the species diversity decreases. an exception to this is the hydrothermal vents |
| very tiny free floating aquatic organisms that are a crucial source of food ( they are the base of the foodchain) | plankton |
| two types of plankton are ___ and ____ ( describe each briefly) | zooplankton and phytoplankton... zooplankton are animals like ( may be protozoans or protist or may be large of various animals).. phytoplankton is plant-like plankton ( they would be types of algae) |
| Give 3 ways the marine ecosystem has an impact on the earth | they consume Carbon dioxide and Produce oxygen ( over 50%).. and the ocean is a major location for evaporation of water that eventuallly helps with percipitation |
| What name is given to the deepest zone of the Open Ocean | the Abyssal zone |
| What is an area of greater biodiversity in the Abyssal zone | the hydrothermal vents |
| Describe the hydrothermal vents | located at the boundaries of the earth's plates, they release large amount of hot water, gases, and minerals ( a black cloud).. bacteria use the chemcals for energy and are the base of the food chain. Other organisms here are clams, crabs. fish etc |
| How is the abyssal zone of an ocean like the profundal zone of the freshwater lake | they are both very deep water, dark, cold, and organisms rely on food drifting down to them from above |
| What is the general location of coral reefs | warm , shallow marine water |
| How do coral reefs protect continents | they are natural barriers along continents and protect them from erosion |
| What is true about the species diversity of a coral reef | they are one of the most species diverse ecosystems.. they can be called the tropical rainforest of the ocean |
| Describe the dominant organism of a coral reef | the dominant organism is a coral ... a small soft bodied invertebrate related to jellyfish that is surrounded by a hard covering of calcium carbonate. They feed using tentacles to get plankton from the water... |
| Many coral have a symbiotic relationship with... | algae ( the algae provides some food and the coral provides protection and access to light) |
| How can a tsunami kill a coral reef | it can cover the coral reef with sediment |
| what else can harm coral reefs | land development and when we harvest calcium carbonate |
Created by:
shemehl
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