individual organisms of a single species that share the same geographic location
What is a population?
100
an organism's role in the environment
What is a niche?
100
the deepest region of the ocean where the water is very cold
What is the abyssal zone?
100
the ocean floor that consists of sand, silt, and dead organisms
What is the benthic zone?
100
the number of individuals moving from a location
What is emigration?
200
a mature community that results when there is little change in the composition of the species
What is a climax community?
200
the number of individuals moving to a location
What is immigration?
200
where a freshwater river or stream merges with saltwater
What is an estuary?
200
the two categories of limiting factors
What is density-dependent and density-independent?
200
the exchange of matter through the biosphere
What is the biochemical cycle?
300
this occurs when some bacteria convert fixed nitrogen compounds back into nitrogen gas and return it to the atmosphere
What is denitrification?
300
the two things a lichen is made up of
What is a fungi and a algae?
300
examples of pioneer species
What is a lichen or a moss?
300
the pythons in the Everglades are an example of this
What is an invasive species?
300
a large group of ecosystems that share the same type of climate and have similar communities
What is a biome?
400
what type of diet does a tertiary consumer have
What is a carnivore?
400
what type of consumer is a primary consumer
What is a herbivore?
400
true/false: a quaternary consumer and a tertiary consumer have the same diet
What is true?
400
true/false: a secondary consumer and a tertiary consumer have the same diet
What is false?
400
a factor that limits the numbers, reproduction, or distribution of organisms
What is a limiting factor?
500
the clownfish and the sea anemone are an example of this
What is mutualism?
500
the remora shark and the whale are an example of this
What is commensalism?
500
a diverse group of organisms that live in the water column of large bodies of water and that cannot swim against a current. They provide a crucial source of food to many large aquatic organisms, such as fish and whales
What is plankton?
500
examples of this include predation, disease, and parasites
What are limiting factors?
500
the amount of energy transferred at each trophic level