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8Sci_Ecosystems
Ecosystems (Mayfield)
| 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 |
Created by:
masonteach
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