This element cycles in ecosystems and gets used over and over again. We are made of molecules of this element that have been on the Earth for 4.5 billion years.
What is carbon?
100
The level that rabbits and cows would be at in a pyramid.
What is the primary consumer level?
100
These are examples of abiotic factors.
What are rocks, soil, sun, weather? (anything that is not living)
200
This type of organism uses photosynthesis to create its own food.
What is a producer or plant?
200
These organisms always form the top level of a food web.
What are carnivores?
200
This group of organisms breaks down dead matter, so it can be used again.
What are decomposers?
200
The level of a pyramid that plants are located on.
What is the base or producer level?
200
These get their energy by using sunlight to make carbohydrates.
What are producers?
300
A rock and the sun are examples of this type of nonliving factor in an ecosystem.
What are abiotic?
300
These organism eat both plants and animals.
What are omnivores?
300
These organisms take in carbon dioxide from the air.
What are plants?
300
If 3000 kcal of energy is made by producers, how much energy will the secondary consumers have?
What is 30?
300
These get their energy by eating producers or other animals.
What are consumers?
400
This group of organisms recycles matter in a food web.
What are decomposers?
400
Most energy is used by organisms in a food web. What % is passed on to the next level?
What is 10%
400
When humans burn this is releases large amounts of carbon dioxide into the air.
What are fossil fuels?
400
This is what happens to most of the energy as you move up a pyramid.
What is 90% is used by the organisms to live?
400
Two ways the carbon dioxide gets into the air.
What are by plants and animals exhaling for cellular respiration and burning fossil fuels?
500
The plants and animals are living so they make up this factor of an ecosystem.
What is biotic?
500
The primary consumers in a food web are always this type of organism.
What are herbivores?
500
Humans and animals get the carbon they need for building muscles and DNA by doing this.
What is eating plants and other animals that contain carbon?
500
This is the level that contains the most organisms in a pyramid.
What is the first level or base?
500
These are examples of carnivores.
What are lions, tigers, hawks, snakes--anything that eats only meat?