Biology Ecodome Presented By: Sample Student

Mineral/Nutrient Cycle Obtain energy –Plants obtain energy from the sun and nutrients from the soil Consuming energy –Humans and other herbivores consume the plants to get the nutrients necessary for survival Digestion –Humans and animals digest the food and get rid of it in the form of waste Decomposers –This waste gets decomposed and returns to the soil, then it repeats the cycle again

Plants absorb water from the soil Living Organisms absorb water from their food or drink it directly Transpiration, cell respiration and evaporation help return water to the atmosphere There are four main parts of the water cycle: Evaporation and transpiration- water is turned into steam with the help of the sun and absorbed by the air Condensation- Water in the air cools and changes back into liquid and turns into clouds Precipitations- When air can’t hold the water anymore the water comes down in the form of rain, hail, sleet or snow Collection- When precipitation occurs water drops back on the land and is soaked by the land into the ground water or is collected into oceans, seas, or rivers. After this the cycle repeats. Water Cycle

Plants -Take up nutrients made by bacteria and lightning -They do this by converting the nitrates into molecules that contain nitrogen Consuming - Humans and animals consume plants that have energy from the sun Disposal - After consuming the food they release it into the air in the form of gas or sweat -The waste can be in the form of water or nitrogen gas Legumes - Take in the nitrogen released by humans and animals -Then they put this nitrogen back into the soil for the plants to use -The plants use this nitrogen to grow and thus repeating the cycle Nitrogen Cycle

Carbon/ Oxygen Cycle Major Components: Plants: –Plants go through photosynthesis ( which chemically combines CO2 with water to make sugar) and absorb the CO2 that we breathe out. We breathe in the oxygen that the plants respirate. –The soil that the plants grow in contain organic matter, which is where the plants absorb their necessary water from –Animals eat these plants and absorb the nutrients provided in it. Also decomposition contains organic molecules. Fossil Fuels: –When fossil fuels i.e. oil, coal, natural gas, and gasoline are burned the carbon stored in these materials are released in the form of CO2. *Then the CO2 from all these components goes into the atmosphere and returns in the form of rain, snow, etc.

Biotic Factors Biotic Factors Goats *First level consumers- Herbivores –Provides milk and meat for humans which contain nutrients –Eat vegetables so the other consumers are not eaten –Their waste can be used as fertilizers Fish * Second level consumers- Omnivores –Since humans must have water we can have fish without them consuming land space which could be a limiting factor –Can be used as food for humans –Help keep the water bug population under control Rabbits *First level consumers- Herbivores –Provide humans with food –Reproduce quickly –Takes up less space

Biotic Factors Biotic Factors Worms * Second level consumers- Omnivores –They take a small amount of space –Eat their way through soil and bugs that might harm plants and bring out minerals needed for plants –Are food for other consumers Mushrooms *Heterotrophs (sapotropes)- Obtain energy and nutrients from other organisms, either living or dead –Are edible by humans and by some animals –Are decomposers that break down and use dead plants and other organisms for food –Can easily grow in different environments

Abiotic Factors Water –Provides necessary chemicals for photosynthesis to take place in plants –Necessary for animals and humans to maintain body composition, hydration Soil –Provides a base for plants to grow –Contains nutrients and water that the plants need to survive Minerals –Nourishes nutrients that are needed by the plants –Provides elements Climate –Affects the types of plants and animals that live in an environment Sun –Main source of energy –Animals, humans, and plants need the sun in order to survive

Biomass and Numbers Pyramid 10 humans at 100 pounds each kg. 18 goats at 6.81 kg= kg 6 cows at kg= kg 40 rabbits at kg= kg 400 chickens at 2.273=909.2 kg 1500 earthworms at.011=16.5 kg 210 salmon at 2.25= kg 200 trout at 6.818= water bugs at 7.8 kg 5000 bushels of grass at 6kg= kg 1000 bushels of clover at kg= kg carrots at kg= 778 kg corn stalks at.31 kg= 4650 kg algae plants at.02 kg= 6000 kg 4000 peas at.4 kg= 1600 kg 100 bushels of wheat at = kg Mushrooms at kg kg kg

Food Web

Limiting Factors SPACE: –Determines the size of animals that are able to grow in a certain area –Provides locations for water, plants, and all the other living and nonliving organisms WATER AVAILIBILITY: –The lack of water would result in low growth of plants that other consumers would eat Food chain would be altered Animals depend on other living organisms in order to survive –There would be no habitat for sea animals TEMPERATURE: –Species need specific temperature ranges in order to survive –Determines which organisms live in a certain habitat

THE END