Science Flashcards
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Created by:
MissBanana on October 12, 2011
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24 terms
Terms | Definitions |
|---|---|
 If the birth rate is greater than death rate the population will | increase |
| an environment that provides all the things an organism needs to live, grow, and reproduce is called the | habitat |
| the study of how things interact with each other and their environment is called | ecology |
| a butterfly, a bird, and a worm are all members of the same | community |
| if an organism emigrates, the size of the original population will | decrease |
| if the number of fish that can grow and reproduce in the pond cannot increase, the pond may have reached it's | maximum capacity (carrying capacity) |
| population density is written as | number of individuals (dash) unit area |
| What's a limiting factor | something that an organism needs in order to survive (water) |
| What is photosynthesis? | when plants make their own food using sun, water, and carbon dioxide |
| What is sampling? | you take a sample of a small area and multiply by total number of small areas |
| What is mark and recapture? | a mathematical equation; when you mark a fish and let it go, and then in a certain time come back and count the ones that aren't marked |
| What is In-Direct observation? | method based on evidence that an animal leaves behind (nest) |
| Put in order: ecosystem, community, organism, population | organism, population, community, ecosystem |
| What is an ecosystem? | a community of interacting organisms |
| What is a community? | different populations |
| What is a population? | a species living in a specific area |
| What is an organism? | any living creature |
| What is secondary succession? | with soil |
| What is primary succession? | no soil |
| Simbiosis | close relationship between two species where at least one benefits |
| Mutualism | :) :) (both benefit) |
| Parasitism | :) :( (one benefits, one harmed) |
| Commensalism | :) :/ (one benefits, other doesn't care) |
| Pioneer Species | first species to populate area |
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