Aquatic Biomes
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each of the black spaces below before clicking
on it to display the answer.
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| What are the two main groups of aquatic biomes? | show 🗑
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| show | Shore, shallow seas, and open ocean which cover about 71% of Earth's surface.
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| show | less than .05 percent.
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| show | Freshwater biomes include ponds and lakes and flowing water, such as streams and rivers. Freshwater wetlands—swamps, bogs, temporary pools, and marshes—are also considered freshwater biomes.
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| True or False: organisms may not occupy more than one biome. | show 🗑
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| What abiotic factors affect biomes? | show 🗑
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| What type of light is more rapidly absorbed by water? | show 🗑
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| What are the two zones of the ocean? | show 🗑
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| Why is water warmer by the surface than the bottom? | show 🗑
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| What is thermocline? | show 🗑
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| Exchange of gases between water and air occurs where? | show 🗑
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| show | The upper layers are nutrient deficient, and the lower layers are nutrient rich.
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| Where is the benthic zone located? | show 🗑
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| show | Decomposition in this zone may decrease oxygen levels in the water and may also lower pH as the acidic products of decomposition are released.
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| What are the two categories of freshwater biomes? | show 🗑
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| True or False: Glaciers are important bodies of frozen fresh water that move very slowly. Glaciers may be considered freshwater biomes. | show 🗑
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| What are the three zones of moving water? | show 🗑
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| Source zones are __________________ in oxygen but ___________ in nutrients. | show 🗑
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| show | True
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| show | The zones result from differences in light, temperature, oxygen, and nutrient availability.
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| show | The well-lit area close to shore, where rooted and floating plants grow
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| Where is the limnetic zone? | show 🗑
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| show | Below the limnetic zone is dark water, called the profundal zone, where photosynthesis cannot take place. Oxygen concentration and temperatures are lower here, and organisms, including certain fish, have adapted to these conditions.
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| What does the benthic zone organisms rely on? | show 🗑
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| show | Oxygen enters the lake either directly from the air or through the photosynthetic activity of plants, algae, and phytoplankton. Wave action mixes lake water with the air and increases the levels of dissolved oxygen.
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| How is oxygen depleted? | show 🗑
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| show | Lakes that are low in nutrients.
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| show | Lakes that have high levels of nutrients and high plant growth.
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| show | They are mostly nuetral between high and low nutrients.
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| show | Freshwater wetlands are areas of shallow water that support the growth of aquatic plants
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| show | low pH and low in available nutrients.
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| What are ephemeral pools? | show 🗑
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| Marines biomes have salinities above_______% | show 🗑
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| show | False! This area can be a harsh place for organisms to live. Twice a day, tides submerge and then expose much of the substrate. The organisms that live on the shore are exposed to major changes in salinity of seawater, as well as fresh water from rain.
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| show | Vertically.
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| Where is the neritic zone located? | show 🗑
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| show | Beyond the continental shelf is open, often very deep, water. In the upper, lit part of this pelagic zone live phytoplankton that form the base of a complex food web.
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| show | The deepest parts of the benthic zone are the abyssal zones. Here, animals must survive in one of the most extreme environments on Earth. Animals that live in the abyssal zone have adaptations for living in near or total darkness.
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| show | The environment is oxygen deficient and is rich in sulfur and other compounds. The communities at these vents are supported by chemoautotrophs, bacteria and archaea that use inorganic chemicals to provide the energy they need to make carbohydrates.
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| show | Estuaries are the places where fresh water from rivers meets the ocean. They typically consist of the end of a river valley that has been flooded to create a broad inlet.
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| T/F: invasive species are not a problem in many aquatic biomes. | show 🗑
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| show | a very rapid rise in the phytoplankton population due to added nitrogen and phosphorus from fertilized land or animal waste
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| show |
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