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Bio Test 3 Chapter
Biology
| Question | Answer |
|---|---|
| Autotroph | makes it's own food (plant) |
| Heterotroph | eats something else |
| Abiotic vs. biotic | abiotic= non-living biotic = living |
| Types of Consumers | Primary consumer - eats plants (herbivore) Secondary Consumer -eats herbivores (carnivore) Tertiary consumer - eats animals that eat animals |
| 2 sources of energy on earth | Sun (photosynthesis) and chemicals (chemo-synthesis) |
| Levels of organization in order | species, population, community, ecosystem, biome, biosphere |
| another name for a producer | a plant or autotroph |
| 4 main phases of the water cycle | Evaporation, transpiration, condensation, precipitation |
| What is nitrification? | The process of making usable forms of nitrogen from atmospheric nitrogen |
| photic and aphotic? | photic: light aphotic: no light |
| estuary | where fresh water meets saltwater |
| reasons for 90% of energy loss | not all organisms eaten, not all part of organisms eaten, energy used for daily functions (homeostasis, reproducation, movement, etc.) energy lost as heat |
| biome with less than 25 cm of precipitation? | desert |
| biomes with poor soil? | rain forest, taiga, tundra |
| mutualism | both organisms benefit |
| commensalism | one benefits, one is not affected |
| parasitism | one organism feeds on another without killing it |
| predation | kill another organism and eat it |
| 2 types of succession | primary: start with rock (ex. lava) secondary: start with soil (exam: fire) |
| Biomes wiht rich soils | grassland, temperate forest |
| immigration vs. emigration | immigration = moving in e migration = moving out |
| Density dependent factores | disease, predation, competition |
| Density-independent factors | natural disasters, weather, human activities |
| Exponential growth vs. logistic growth? | exponential: keeps growing, J-curve logistic: population levels off at carrying capacity, S curve |
| Characteristics of tundra biome | permafrost, low plants, windy |
| detritivore | animal that eats dead organic matter |
| decomposer | a detritivore that breaks down organic matter to its basic elements (examples: bacteria and fungi) |
| How much energy is transferred from one trophic level to the next? | Only about 10 % of the energy available within one trophic level is transferred to organisms in the next trophic level. 100% (Producers), 10% (first level producers) 1% (second level consumers), 0.1% (third level consumers) |
| Have a working knowledge of food web vocabulary | producers, decomposers, herbivores, first-level carnivores, top-level carnivores |
| 6 terrestrial biomes | tropical rainforest, desert, grassland, temperate forest, boreal forest (Taiga), tundra |
| denitrification | a process where soil bacteria convert nitrates into nitrogen gas |
| commensalism | one organism benefits, the other is unaffected |
| competition | 2 organisms compete for resources |
| mutualism | both organisms benefit (monkey eats flea off a monkey, no more fleas) |
| succession: primary vs. secondary | primary starts with rocks (rocks-soil-algae-small plants-big plants) secondary succession - starts with the soil (example: after a fire) |
| symbiosis | process of living together |
| niche | the full range of physical and biological conditions in which an organism lives and the way in which the organism uses those conditions |