Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
MrsUCh 2-Biology
Chapter 2 Review-
| Question | Answer |
|---|---|
| All of the nonliving factors in an organism's environment | abiotic |
| The _________ is the portion of earth that supports life. | biosphere |
| Each step in a food chain or food web is a(n) | trophic level |
| ________ is the total mass of living matter at each trophic level | biomass |
| ______ is a biological community and all of the abiotic factors that affect it. | ecosystem |
| The act of one organism consuming another organism for food is __________. | predation |
| A(n) ________ _______ is a simplified model representing the transfer of energy from organism to organism. | food chain |
| The close relationship that exists when two or more species live together is ______. | symbiosis |
| ____ is the scientific discipline in which the relationships among living organisms and the interaction the organisms have with their environments are studied. | Ecology |
| Eats both plants and animals | omnivore |
| Eats fragments of dead matter and returns nutrients to the soil, air, and water | detritivore |
| heterotroph that eats only plants | herbivore |
| Heterotroph that preys on other heterotrophs (eats meat) | carnivore |
| organism that collects energy from sunlight or inorganic substances to produce food | autotroph |
| organism that gets its energy by consuming other organisms | heterotroph |
| relationship between 2 or more organisms that live closely together and benefit from each other | mutualism |
| relationship where one organism benefits at the expense of another organism | parasitism |
| one organism benefits and the other is neither helped nor harmed | commensalism |
| made up of individual organisms of the same species | population |
| all living organisms in an environment | biotic factors |
| portion of earth that supports life | biosphere |
| made up of the organisms and nonliving (abiotic) things in an area | ecosystem |
| ______ is part of all organic compounds, which make up living things. | carbon |
| ________ is a nutrient that organisms need to produce proteins | Nitrogen |
| What is the role or position that an organism has in its environment? | niche |
| All of the biomes on earth combine to form the highest level of organization, the __________ | biosphere |
| anything that has mass or takes up space | matter |
| individual organisms of a single species that share the same geographical location at the same time | population |
| Energy for most ecosystems originates from the _____ | sun |
| The largest concentration of nitrogen is found ___________ | in the atmosphere |
| In a process called ______, some soil bacteria is converts fixed nitrogen back into nitrogen gas, which returns it to the atmosphere. | denitrification |
| This type organism captures atmospheric nitrogen for the purpose of nitrogen fixation | bacteria |
| During predation, the organism being pursued is known as the ____ | prey |
| A ______ is the place in which an organism lives | habitat |
| The close relationship that exists when two or more species live together is _____________ | symbiosis |
| A __________ is a chemical substance that an organism must obtain from its environment to sustain life and undergo life processes | nutrient |
| The exchange of matter through the biosphere is called the __________ __________. | Biogeochemical cycle |
| _______ _________ represent that many interconnected food chains and pathways in which energy flows through a group of organisms | Food webs |
| The ecological levels of organization in order (smallest to largest) | Organism, population, biological community, ecosystem, biome, biosphere |
| Two major life processes that involve carbon and oxygen | Photosynthesis and respiration |
| _______ occurs when more than one organism uses a resource at the same time. | Competition |
| About _____ of all freshwater is found in ice caps and glaciers, making it unavailable for use by living organisms. | 69% |
Created by:
Ungerer
Popular Biology sets