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Bio Exam 1
Stack #65414
| Question | Answer |
|---|---|
| Producer | autotrophic organisms, plants etc. |
| Primary Consumer | herbivores, plant eaters |
| Secondary Consumer | eat primary consumers, carnivores |
| Detritovores | plant and animal remain eaters |
| Decomposers | fungi, bacteria... break down stuff |
| species | similar organisms able to produce fertile offspring |
| population | group of individuals with same species and same area |
| communities | different populations living together in a defined area |
| ecosystem | all organisms living in a particular place |
| Sunlight | main energy source for life on earth, less than 1% is used by living things. |
| Food Web for ecosystem | b/c energy flows through in one direction from the sun to producers to consumers |
| Energy passed through tropic levels = ? | 10% or 1/10 |
| Competition | compete for resources, 1 species per habitat |
| Predation | animals eating animals for food |
| Sybiosis | 2 different species living together |
| Mutualism | 2 species benefitting from relationship "bee and pollen" symbiosis |
| Commensalism | bad relationship, only 1 person benefits from relationship... symbiosis |
| Parasitism | one organism living in another... sybiosis |
| Greenhouse gasses | gasses insulating the earth, co2, methane, water vapor |
| Carrying Capacity | when an environment cannot support anymore individuals.. growth rate reaches zero |
| Limiting Factor | a factor that causes a populations growth to decrease |
| Density dependant limiting factor | Limiting factor depending on pop. size. ie. competition, predation, parasitism, disease |
| Density-independent limiting factor | affects regardless of pop. size. i.e - weather, natural disasters, seasons, hunting |
| Taxomic Categories | domain, kingdom, phylum, class, order, family, genus, species |
| genus | closely related species |
| family | genera sharing many characteristics |
| order | similar families |
| class | similar orders |
| phylum | different organisms share important characteristics |
| kingdom | largest and most inclusive |
| Derived Characters | charaterisitics that appear in recent evolution not found in ancestors |
| 3 Domains | Eukarya, Archae, Bacteria |
| Kingdoms | Eubacteria, Archaebacteria, Protista, plantae, fungi, anamalia |
| Protista | eukaryotes that are NOT animals, plants or fungi |
| Fungi | feeds on dead or decaying stuff |
| archaebacteria | unicellular, live in intense conditions. ie volcanos |
| eubacteria | parasites or other organisms, i.e ecoli |
Created by:
Seanmax
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