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54 Cards in this Set
- Front
- Back
- 3rd side (hint)
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What is abiotic and biotic? Give examples |
Abiotic-non-living(rock,climate,water, soil) Biotic-living (fish, bacteria, algae) |
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What is ecology? |
The study of how organisms interact with each other and as well there enviroment |
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Sustainability |
The population continues to thrive indefinitely |
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Ecosystem |
A complex, self-regulating(healthy and sustainable) system in which living things interact with each other and with non living things |
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Biodiversity |
Number of different species found in an area |
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High levels of biodiversity is a sign of? |
A healthy, sustainable ecosystem because of more vegetation in the food chain, giving them more choices |
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Water cycle |
Evaporation occurs when water warms and changes to water vapour Condensation occurs when water vapour cools and turns back into water droplets Precipitation (rain,snow,sleet,hail,) falls from the clouds to the earth |
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Nitrogen cycle |
Bacteria in the plants and soul change nitrogen gas into nitrogen Plants and animals use nitrogen to make proteins they need to grow Bacteria change nutrients from waste and dead plants and animals back into nitrogen has |
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Transpiration (process) |
Plants release water through their leaves back into the air |
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Carbon |
Found in every living thing |
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Is carbon necessary for survival |
Yes |
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What is the carbon cycle |
The process of carbon continually moving between living and non living things on earth and in the atmosphere It is important that we control the amount of carbon in the air |
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Where does most energy come from |
The sun |
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Plants can change the light energy from the sun into chemical energy or food |
Yes |
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What are producers? |
Organisms that carry out photosynthesis or example plants |
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What is photosynthesis |
The process in which plants and convert energy from the sun into food They take sunlight, carbon dioxide, water and turn it into glucose, oxygen |
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Chlorophyll? |
Only in plants and is required to absorb suns energy |
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What is cellular respiration ? |
Releasing energy, all living organisms preform it. They take glucose (food energy) and oxygen and turn it into carbon dioxide, water and energy |
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Consumer ? |
Organisms that eat other organisms for food |
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Primary consumer? |
They eat producers |
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Secondary consumer |
Feeds on primary consuners |
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Tertiary consumer |
Eats secondary consumer (hawk eating robin) |
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Herbivore |
Always eats plants |
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Carnivore |
Mostly eat meat |
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Scavenger |
Carnivores that eat remains of dead animals (vultures) |
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Omnivores |
Eat both animals and plants |
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Detritivores |
Consumers that feed on organic matter |
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Organic matter |
The remains of dead organisms and animals wastes |
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Predator |
Animals that catch and feed on other live animals |
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Prey |
Animals that the hunter catches are prey |
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De composers |
Special consumers thy break down organic matter and release the nutrients in the organic matter back into the ecosystem Fungi bacteria Release enzymes that break down organic matter rather then consuming |
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Food chain |
Way of showing feeding relationships among organisms, they start with producer and end with consumer |
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Sustainable use |
Using an ecosystems resources in a way that meets our current needs without compromising |
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Genetic diversity |
Differences in individuals, future generation , diversity in species, keeps a healthy population |
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Extinction |
The death of every member of a species |
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Habitat change |
Human impacts (5) |
Habitat change Over exploration Pollution Invasive species Climate change |
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Human impacts on freshwater ecosystem |
Recreational industries Motor boats Sewage Boat wakes Socks Braces Clearing shoreline Pollution Boating |
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Suburban terrestrial ecosystems |
Urban sprawl Growth of urban and suburban development into surrounding country side Building new houses |
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Forest ecosystem |
Logging Clear cutting Fragmentation ?? Hunting |
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What is biological oxygen demand |
Measurement of how how fastt micro organisms use oxygen in a specific area of water and through tests is effective for certain types of water pollution |
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How does the presence of nitrogen and phosphorous threaten ecosystems |
These are present in fertilizers, they get into waterway. They cause fast algae growth. The large amount of algae decomposing oxygen is depleted. Less oxygen puts animals lives in he's prosy |
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Heavy metals examples |
Copper, lead, cadmium, Mercury, and many more |
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Bio magnification |
Biomagnification is where the Mercury in the animals body eventually becomes more and more concentrated through food chain |
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Thread levels of soil |
Where plants grow, humus (organic material) Subsoil - hard packed Bedrock- hard water cannot pass through so water lies above in subsoil |
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Sandy soil |
Contains large particles , allows tooth growth and air pockets an water to drain into subsoil |
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Clay soil |
Small particles, tightly packed together, doesn't allow root growth, air pockets or water drainage. |
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Acidity of level of soil is important because |
If it's too acidic or alkaline can damage the tissues of plants and animals or make it difficult for them to absorb nutrients. |
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Soil erosion |
Soil erodes |
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How does farming contribute to soil erosion |
When farmers plow or till the soil, this exposes water and wind to the topsoil, when livestock overgraze and kill plants, the plants die. If the soil can't hold its place it causes soil erosion |
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What is crop rotation |
They plant a different type of crop in a particular field each year |
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What does crop rotation restore and how (2) |
Nitrogen because causes the nitrogen to restore/replenish in the soil. |
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Ph scale |
0-acidic 7-neutral 14-alkaline |
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Extirpated |
A species is extinct in a specific area |
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Three indicators of quality of water |
Acidity BOD dissolved oxygen |
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