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Ecosystems (Mayfield)

What is a habitat? a place where an organism lives
What do species require organisms to do? share similar characteristics & be able to breed with one another
What are biotic factors? living parts of an ecosystem
What is a host? an organism that a parasite lives on or in
What does it mean to cooperate? when organisms work together and have helpful interactions
Would a bird be considered a prey or predator to a worm? a predator
Where can carbon naturally be found? the air, ground, plants & animals
Where can extremophiles be found? in very cold places, deep ocean vents and hot springs
What human activity contributes the most to the Carbon cycle? burning fossil fuels
What are abiotic factors? nonliving parts of an ecosystem
What is a community? it is made up of all the populations that live in an area at the same time
What is decomposition? a process where bacteria and other decomposers break down dead organisms
What is population? when all the organisms of a species live in the same place at the same time
When does competion occur? when organisms in an ecosystem try to get the same resources
What is predation? a relationship in which one animal hunts, kills & eats another
What does an ecosystem include? all the living and nonliving parts of an environment as well as the interactions among them
What is nitrogen fixation? a natural process that converts nitrogen from the atmosphere into forms that are useful to a variety of organisms
What is a niche? how an organism acts within its ecosystem
What is dentrification? it takes nitrogen from nitrates and other compounds in the soil and releases it as nitrogen gas
What are the three types of ecosystems? terrestrial, marine & freshwater
What is an example of a terrestrial ecosystem? land, desert or forest
What is an example of a marine ecosystem? salt water or oceans
What is an example of a freshwater ecosystem? rivers, lakes or streams
What is the main terrestrial ecosystem in North Carolina? temperate deciduous forest - meaning a mild climate and the trees lose their leaves in the fall
What does symbiosis mean? a close relationship
What are the three types of symbiosis? mutualism, commensalism, and parasitism
What is mutualism? both species benefit
What is commensalism? one species benefits without benefiting or harming the other
What is parasitism? one species harms the other species such as fleas and ticks on dogs
Why is nitrogen important to the ecosystem? all living things need nitrogen to make proteins
Why is carbon important to the ecosystem? carbon is in every living thing
Where is carbon found? in the air and the ground
What is the most common form of carbon that is released as a product of cellular respiration? CO2
When can carbon in animals be used? animals have to be eaten and decomposed
How do humans increase carbon? burning fossil fuels
How do humans rise nitrogen levels? by fertilizers
What do all living things need to make proteins? nitrogen
Where is most nitrogen located? in the atmosphere
How does nitrogen fixation bacteria benefit animals? it makes nitrogen available to plants and then animals eat the plants
Created by: ndmsteach