Food Webs
Factors
Who's Who
This and That
Who Knew?
100
These are interconnecting food chains
What is a food web?
100
Water, air, soil, temperature, and pH.
What are abiotic factors?
100
These organisms are the lowest level of an energy pyramid?
What are producers?
100
This is when one species follows another species as an ecosystem changes.
What is ecological succession?
100
Who knew the removal of trees from a forest is called
What is deforestation?
200
These organisms can be considered the last organisms of a food web?
What are decomposers?
200
Lichens, moss, bacteria, humans.
What are biotic factors?
200
All the members of the species Canis famililaris?
What is a population?
200
This is where all the energy of an energy pyramid comes from.
What is the sun?
200
Who knew that oceans, mountains, and deserts are a form of these?
What are biomes?
300
These organisms are at the beginning of food webs?
What producers?
300
This is what limiting factors do.
What controls the survival of organisms in an ecosystem?
300
These organisms return nutrients to the soil?
What are bacteria and fungi (decomposers)?
300
Predators, prey, and parasites.
What are niches?
300
What knew that rotating crops, sterile males, and natural predators can do this?
What is biological control of pests?
400
This name means that producers do not rely on other organsims for food.
What are autotrophs?
400
The number of organisms that can be supported in an ecosystem?
What is carrying capacity?
400
Lowering the level of water in a lake to control zebra mussels.
What is an example of biological control?
400
Water, Nitrogen, Carbon dioxide-oxygen.
What are cyclles?
400
Who knew that this is the mass of all the living things in an ecosystem?
What is biomass?
500
These are examples of human activity that negatively affect the environment.
What is pollution from cars, factories, engines, deforestation?
500
Mosquito fish, purple loosestrife, asian carp, snakehead fish, and zebra mussels.
What are examples of pests?
500
Unwanted, unplanned, annoying, and invasive.
What are pests?
500
The amount of rain, sunlight, food, and shelter in an ecosystem that control the survival of organisms.
What are limiting factors?
500
Who knew that this shows the flow of energy through an ecosystem?
What is an energy pyramid?
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