Each step in the transfer of energy and matter within a food web
What is trophic level?
100
The bottom of the pyramid and organisms that make their own food. (2 names)
What are primary producers and autotrophs?
100
One organism benefits and the other is harmed.
What is parasitism?
100
A group of organisms of the same species that live in the same area are called a ___________.
What is a population?
100
An organism that eats plants.
What is a herbivore?
200
Factors that are nonliving (soil, rainfall, temperature
Ware are abiotic factors?
200
The second level of the pyramid and organisms that have to find their food. (2 names)
What is a primary consumer and heterotroph?
200
When one organism benefits and the other isn't harmed.
What is commensalism?
200
Number of species in an ecosystem.
What is bioiversity?
200
Organisms that get energy from decaying organic matter.
What is a detritivore?
300
Living things in an ecosystem.
What are biotic factors?
300
The 3rd and 4th level of a pyramid.
What is a secondary or tertiary consumer?
300
When both organisms benefit from each other.
What is mutualism?
300
All the biotic and abiotic factors in a given area make up an ________.
What is an ecosystem?
300
The measurement of the number of individual organisms living in a defined space is called _____________.
What is population density?
400
Temperature, storms, floods, droughts, habitat disruption are examples of ______________________.
What are density-independent factors?
400
How energy flows through an ecosystem in a typical food chain.
What is autotroph to heterotroph?
400
Feeding steps in a food chain or pyramid
What is a trophic level?
400
ALL the interconnected feeding relationships in an ecosystem make up a food ______.
What is a food web?
500
Disease, parasites, food availability are all __________.
What is a density-dependent factor?
500
10% of energy stored in an organism can be passed on to the next trophic level. The other 90% is used by the organism for life proecesses and the rest is __________.