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Ecosystems (Mayfield)

Quiz yourself by thinking what should be in each of the black spaces below before clicking on it to display the answer.
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Question
Answer
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  


   






 
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