Ecology
An example of parasitism.
Teacher decision because there are so many possibilities.
A group of organisms of the same kind within a specific area
What is a population?
The level of heterotroph that preys on herbivores.
What is secondary heterotrophs?
Give an example of a biotic factor that controls the size of a population
There are many possibilities including predators, food, parasites, disease
a biological community and the abiotic factors that affect it
the process of individuals moving out of a population
What is emigration?
The LOSS of energy between two levels of the food chain.
What is about 90 percent?
The type of organism that eats both plants and animals
Omnivore
The levels of ecological organization from smallest to largest.
Organism, population, community, ecosystem, biome, biosphere
The thin layer within which life exists on earth; Also the top level of ecological organization.
What is the biosphere?
Many possibilities, including disease, parasites, food
An organism that cannot make its own food.
What is a consumer or heterotroph?
What is a trophic level?
a group of similar ecosystems that share the same climate and similar biological communities.
The things that keep living populations of organisms from growing out of control
What are limiting factors?
The amount of energy passed to 2nd order heterotrophs if producers make 1,000 J of energy.
What is 10 J?
A nutritional relationship in which both organisms benefit by living together.
What is mutualism?
Explain what happens to a population when it reaches its carrying capacity.
What is the number of organisms in a population varies slightly above and below the carrying capacity depending on resources available?
In an ecosystem, what happens to the atoms of certain chemical elements, such as carbon, oxygen, and nitrogen?
What is they cycle through living and nonliving systems?
the number of organisms per unit area
Two ways carbon enters living systems.
What is through photosynthesis and through consuming food?
Brown squirrels and grey squirrels are different species that live in the same area and eat the same food. Their relationship is an example of...
What is competition?
Organisms that feed on dead organic matter
What is detritivore?