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Aquatic Ecosystems
| Question | Answer |
|---|---|
| Erosion affects aquatic ecosystems by... | moving solid material such as soil, mud, & rock. It clogs streams and fill reservoirs. It reduces soil fertility and water quality. |
| Dirt/Sediment affects aquatic ecosystems by... | blocking light, killing aquatic plants, and clogging gills |
| Organic pollution affects aquatic ecosystems by... | organic matter/pollution uses up a lot of oxygen |
| Non-point source pollution | pollution from a broad area or a number of sources |
| Point source pollution | pollution from one source |
| Water quality affects aquatic ecosystems by... | the water quality affects the health of aquatic organisms. Things that affect water quality are cloudiness, temperature, & chemicals. The water quality can cause things to over populate or die. |
| Inorganic pollution affects aquatic ecosystems by... | inorganic pollution such as nitrates, phosphates, & fertilizers make plants grow at the surface, blocking sunlight for other plant growth |
| Aquatic Ecosystems in Missouri | three kinds of aquatic ecosystems are streams, lakes, & wetlands. Rivers and streams contain flowing water. Wetlands have shallow water at some part of the year. The two main wetlands are marshes & swamps. |
| Extinct Species | a species that has no living members |
| Endangered Species | a type of plant or animal whose numbers are so small that it is at risk of extinction |
| How does competition affect ecosystems? | since there is competition, every species has their own niche. It includes how it gets food, the habitat it needs, and the role it performs in the community. |
| Why do we have a carrying capacity in aquatic ecosystems? | because if a population exceeds the carrying capacity individuals may starve, get sick, or be forced to move to a place that can support them. |
| Properties of Water | -solid, liquid, gas -solid form is less dense than liquid -molecules attract one another using surface tension -molecules can cling to other things -transparent to light -high boiling point (212F), low freezing point (32F) |
| Threats to aquatic ecosystems | Habitat destruction - cutting down trees, overgrown algae, water pollution, littering, invasive species, organic pollution, over populations, human destruction, erosion |
| How invasive species affects the ecosystems they are introduced to | use up resources meant for native species (food, shelter, habitat, space, etc.) could bring disease |
| How do adaptations help organisms in their environment. | protects organisms from predators helps them hunt prey, allows for species to reproduce continuation of species. |
| Where water goes when it runs off a street. | into storm drains, and out to aquatic ecosystems (lakes, rivers, streams, creeks, ponds, etc.) |
| How temperature of water affects amount of oxygen. | higher the temperature lower amount of oxygen, lower temperature, higher amount of oxygen |
| Biodiversity | the number and variety of living things in an environment |
| Species | a group of individuals sharing some common characteristics or qualities and a particular kind of creature |
| Sediment | silt, sand, rocks, and other matter carried and deposited by moving water |
| Watershed | all the land from which water drains into a specific body of water |
| Conservation | careful use |
| How much freshwater is on earth? | 3% |
Created by:
hbaldwin849
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