Biology Quiz for 3-1, 3-2
Terms in this set (18)
A group of similar organisms that can breed and produce fertile offspring.
A group of individuals that belong to the same species and live in the same area
A collection of different populations that live together in an area
A biological community of interacting organisms and their physical environment.
A group of ecosystems that share similar climates and typical organisms
What is the main source for light on Earth?
What are autotrophs/producers?
Organisms that can capture energy from the from sunlight or chemicals and use that energy to produce food
What is photosynthesis?
light provides the energy needed to turn carbon dioxide and water into oxygen and carbohydrates
process in which chemical energy is used to produce carbohydrates
What are heterotrophs?
Organisms that obtain food by consuming other living things
what is a food chain?
A series of steps in which organisms transfer energy by eating and being eaten
What is a food web?
links the food chains together in an ecosystem
What is a trophic level?
Each step in a food chain or food web
what makes up the higher level of the food chain?
What is an ecological pyramid?
a diagram that shows the relative amounts of energy or matter contained within each trophic level in a food chain or food web
What is an energy pyramid?
A diagram that shows the amount of energy that moves from one feeding level to another in a food web
What is a biomass pyramid?
a diagram that compares the biomass of different trophic levels within an ecosystem
What is a pyramid of numbers?
shows the relative number of individual organisms at each trophic level
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