Show:
definitions one
definitions two
Fill in the blank
True/False
Checking Concepts
100
An organism that can make its own food.
What is a producer?
100
A diagram that shows the amount of energy that moves from one feeding level to another in a food web.
What is a energy pyramid?
100
A ________________ and _________________ is an example of decomposers.
What is mushroom and bacteria?
100
An organism that eats the reamins of dead organisms is called an herbivore.
What is false. It is a scavenger.
100
How are food chains and food webs different?
A food chain is a single path of events in which one organism eats another. A food web is a combination of interconnected and overlapping food chains.
200
An organism that obtains energy by feeding on other organisms
What is a consumer?
200
The process of changing free nitrogen gas into a usable form.
What is nitrogen fixation?
200
A _______________ is a diagram that shows how much energy is available at eat feeding level in an ecosystem.
What is energy pyramid?
200
The study where organisms live is called continental drift.
What is false? Biogeography is the correct term.
200
What is the source of energy for most ecosystems?
What is the sun or sunlight, because it provides energy for photosynthesis, which allows producers to make their food, and producers support consumers.
300
A carnivore that feeds on the bodies of dead organisms.
What is a scavenger?
300
The movement of organisms from one place to another.
What is dispersal?
300
____________________ is step of the water cycle when drops of water in a cloud become to heavel and they fall to the earth.
What is percipitation?
300
Precipitation and temperature are the two major abiotic factors that determine what types of plants can grow in an area.
What is true?
300
Explain how competition can affect the dispersal of species.
Competition can be a barrier to dispersal when an existing species outcompetes a new one. Competition can also further dispersal when a new species outcompetes an existing one.
400
An organism that breaks down wastes and dead organisms
What is a decomposer?
400
A group of land ecosystem with similar climates and organisms.
What is biome?
400
Three ways that organisms may be dispersed is __________, _________, and ________.
What is wind, water, and other organisms?
400
An organism that is carried into a new location by people is referred to as an exotic species.
What is true.
400
In which biome would you find large herbivores such as elephants and zebras? Explain.
Grasslands, including savannas, because the grasses and nonwoody plants grow in abundance, protected by large herbivores that keep bushes and trees from becoming abundant.
500
The pattern of overlapping food chains in an ecosystem
What is a food web?
500
The process by which molecules of a liquid absorb energy and change to a gas.
What is evaporation?
500
Canada is a _________________ biome, because the winters are cold and long and it is covered in fir and spruce forests.
What is boreal forest?
500
Condensation is rain, sleet, or snow.
What is false. Percipitation.
500
Which abiotic factors are important to aquatic ecosystems?
What is sunlight, temperature, oxygen, and salt content.