Organisms and their environment
2.1.1
Flow of energy and cycling of matter:
Water:
Flow of energy and cycling of matter:
Water:
The cycle of water through an ecosystem is very important for life in the ecosystem. Without enough clean water in an ecosystem the ecosystem can not live long and prosper.
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Nitrogen: Most plants get their nitrogen through the soil but nearly 80% of the air you breath in is nitrogen. Without the nitrogen in the soil almost all pants would die and the would kill out the ecosystem.
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Oxygen cycle: Plants create the majority of the oxygen we breathe through a process called photosynthesis. Plants use carbon dioxide, sunlight, and water to create energy. In the process they also create oxygen which they release into the air.
Lab activity: Discuss with a small group how human activitys are changing the oxygen cycle.
2.1.2
Behaviors: Animals have many different behaviors some of these are to help them find a mate and others are to help them to fight off predators. For example rattlesnakes rattle their tails to warn predators that they are getting to close to them.
structural adaptations: Animals have structural adaptations to help them survive for example Robins have key eye sight to help them find worms. Structure will change with changing times.
structural adaptations: Animals have structural adaptations to help them survive for example Robins have key eye sight to help them find worms. Structure will change with changing times.
Lab activity: Look up an animal that has adapted over time tell what its major adaptions are.
2.1.3
How organisms interact with each other
Predator:
A predator is an organism that eats another organism. The pray is the organism which the predator eats an example is a great white eating a sea lion.
Competition:
Competition is a negative interaction that happens among organisms when two or more organisms need the same limited resource. Animals need resources to grow and reproduce.
Parasitism:
Parasitism when one species will benefit and the other will be harmed. An example of this is when a tick gets on a rabbit the tick will eat but the rabbit could die of infection.
Naturalism:
Neither organism is harmed or benefits.
Predator:
A predator is an organism that eats another organism. The pray is the organism which the predator eats an example is a great white eating a sea lion.
Competition:
Competition is a negative interaction that happens among organisms when two or more organisms need the same limited resource. Animals need resources to grow and reproduce.
Parasitism:
Parasitism when one species will benefit and the other will be harmed. An example of this is when a tick gets on a rabbit the tick will eat but the rabbit could die of infection.
Naturalism:
Neither organism is harmed or benefits.
Lab activity: draw a card out saying neutral, pray, predator go up to someone and open your card and see what you draw if you are both natural you both live if you are prey and they are predator you die sit down if you die and keep drawing and playing until there is only one player left that person is the winner.
2.1.4
How are ecosystems so stable over thousands of years even if population fluctuates?
Even with populations changing through the years populations stay sable because when certain populations begin to overpopulate and are eating off all the food and taking all the available shelter. Things begin to happen either that population will stop reproducing or a disease will overtake and kill off part of the population like when there is to be to many deer the blue tong disease starts killing off part of the deer.
Even with populations changing through the years populations stay sable because when certain populations begin to overpopulate and are eating off all the food and taking all the available shelter. Things begin to happen either that population will stop reproducing or a disease will overtake and kill off part of the population like when there is to be to many deer the blue tong disease starts killing off part of the deer.
Lab activity: Put out 5 cookies and 5 cups of milk everyone draw a number out of a hat the top 1,2,3,4 and 5 go and get your cookie and milk then send one at a time up based off your number and see how with to many people there is not enough cookies and milk or in and ecosystem this would be water shelter and food to all survive this shows overpopulation.
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Can humans overpopulate? Watch this and giver your answer.
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Work cited:
https://www.youtube.com/watch?v=wdvzTITvKqU
https://www.google.com/search?newwindow=1&rlz=1C1BLWB_enUS571US581&espv=2&biw=1920&bih=935&tbm=isch&sa=1&q=overpopulation&oq=overpopulation&gs_l=img.3..0l10
http://www.outdoorhub.com/how-to/2014/11/04/recognize-5-common-lethal-deer-diseases/
https://www.youtube.com/watch?v=zSmL2F1t81Q
https://www.youtube.com/watch?v=zSmL2F1t81Q
http://engineering.nyu.edu/k12stem/sosc/curriculum/urban-infrastructure/natural_cycles/
http://www.realtrees4kids.org/sixeight/cycles.htm