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Ecology Unit
Environmental Science, Ecology Unit
| Question | Answer |
|---|---|
| all organisms, plus their physical environment | ecosystem |
| a group of various species that live in the same place | community |
| all members of the same species that live in the same place at the same time | population |
| living or once-living parts of an ecosystem | biotic factors |
| non-living parts of an ecosystem | abiotic factors |
| a group of organisms that can mate and produce fertile offspring | species |
| a living thing | organism |
| the place where an organism lives that contains everything the organism needs to survive | habitat |
| What makes an organism more or less likely to survive? | genes |
| In order for evolution occur, what must an individual do? | reproduce |
| the process by which individuals that are better-adapted to their environmental survive and reproduce more successfully than less well-adapted indivudals | natural selection |
| a change in the genetic characteristics of a population from one generation to the next | evolution |
| a trait that makes an individual more likely to survive | adaptation |
| How do scientists classify organisms? | six kingdoms |
| Why are nitrogen-fixing bacteria important? | covert nitrogen from the atmosphere into a form that plants can use |
| How are bacteria and fungi similar? | break down dead organisms |
| How are bacteria and fungi different? | different cellular structures |
| Which kingdoms of organisms are able to get their energy directly from the sun? | protists, plants |
| flowering plant that produces seeds enclosed in fruit | angiosperm |
| woody plant that produces seeds which are not enclosed in a fruit | gymnosperm |
| What is a fungi? | organism that breaks down other organisms and absorbs the nutrients |
| all organisms break down glucose to gain energy to function | cellular respiration |
| plants use energy from the sun to make glucose | photosynthesis |
| How are photosynthesis and cellular respiration related? | same reactants and products |
| Why are energy pyramids effective ways to visualize energy loss between trophic levels? | less energy is available to organisms at higher trophic levels |
| Why is nitrogen important? | makes up 78% of Earth's atmosphere; forms the structures of proteins |
| What are the causes of algal blooms? | excess use of fertilizers |
| What are the effects of algal blooms? | kills organisms in waterways |
| All energy comes from | the sun |
| the first organisms to appear in a newly-available area | pioneer species |
| occurs on a surface that did not previously support life | primary succession |
| occurs on a surface that previously supported life | secondary succession |
| final, stable community | climax community |
| a gradual process of change and replacement of some or all of the species in a community | ecological succession |
Created by:
jrobinson214
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