EOC PRACTICE QUESTIONS #5.
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Bio.2.1.1 Analyze the flow of energy and cycling of matter (water, carbon, nitrogen and oxygen) through ecosystems relating the significance of each to maintaining the health and sustainability of an ecosystem. Bio.2.1.3 Explain various ways organisms interact with each other (including predation, competition, parasitism, mutualism) and with their environments resulting in stability within ecosystems.
Bio.2.1.4 Explain why ecosystems can be relatively stable over hundreds or thousands of years, even though populations may fluctuate (emphasizing availability of food, availability of shelter, number of predators and disease).
Prey would decrease
Organisms with the most energy in a food web are the ____. They have the greatest impact on the ecosystem because without them there would not be food and energy for the others.
_____ in the soil convert nitrogen gas into the usable form of ammonia, nitrates, and nitrites so plants can use it. We get the correct form of nitrogen we need from the plants or animals that have eaten plants.
bird (when eating grass)
bird (when eating the worm)
eagle (when eating rabbit)
Eagles eat more lizards and rabbits making them decrease
Snail population increases
Third (count auto and heterotrophs)
(if it was there, all arrows would point toward it)
Bio.2.2.1 Infer how human activities (including population growth, pollution, global warming, burning of fossil fuels, habitat destruction and introduction of nonnative species) may impact the environment. Bio.2.2.2 Explain how the use, protection and conservation of natural resources by humans impact the environment from one generation to the next.
Agricultural or sewage runs off into the freshwater ecosystem and can cause rapid growth of an algal bloom and eventually oxygen depletion. This is called ______ and will eventually cause the body of water to fill in.
Building cities takes away organisms’ habitats causing them to move or die. Overhunting and overfishing can also lead to a decrease in ________.
_______ will cause the oxygen and water levels in the atmosphere to decrease and the carbon dioxide levels to increase. It also takes away an organisms’ habitat.
The ______helps to control and stabilize the temperature of Earth by trapping infrared radiation. The burning of _____ has increased the amount of _________in the atmosphere causing global warming.
Burning of fossil fuels also releases sulfur dioxides and nitrogen oxides in the atmosphere. When these mix with precipitation, ____ is formed which affects the forest and the freshwater ecosystem.
Items put in landfills should be ____ or able to be broken down by decomposers. Otherwise we should ____, _____, and _______. Conserving fuel and electricity reduce your carbon footprint.