click below
click below
Normal Size Small Size show me how
Envir Sci 1st 9 wks
Environmental Science 1st 9 wks
| Question | Answer |
|---|---|
| the variable plotted on the x-axis is called the | Independent veriable |
| another term for technologyis | applied |
| When desinging an experiment the first step is to | state a prouble |
| the prcess of gathering information though the sences is called | observation |
| graph temp. change over time is what temp. change | dependent variable with the large |
| rule/principle in nature | scienfic law |
| factor manipulated in all expementall change | independent veriable |
| measure of earths gravitional pull on matter is | weight |
| an explanation based on repeated observation | theory |
| counting kernels is | observation |
| test hypothesis | experiment |
| standerd for comparison | control |
| an idea event or object can be represened by a | model |
| 150 saquaro cactus per square kelometer | population |
| range indicat | the area inhabited by population |
| movement into range | immigration |
| 2 way population can decrease in size | decrease birth rate and emigration |
| during what kind of population growth the size of each generation of offspings | exponetal growth |
| growth phasw of most populations | logistic growth cure |
| population-resouces start to become less | reaches carrying compasity |
| not alimiting factor | drought |
| reduce compotion | fewer individuals |
| density dependent except | temperature |
| is density independent | earthquake |
| scientific study-demography | human population |
| demography transition is a chaning from high birth and high death rates | low birth rate and low death rate |
| simpleat groughing of greater that 1 kind of organism | community |
| model of complex feeding interactions | food web |
| controls growth of a population | limiting factor |
| niche | role |
| bird stelks. kills and eats insects; carnivore | consumer |
| plants in meadow and sulfur bacteria | both produce carbs and oxygen |
| one harms and one benefits | parasitism |
| biotic | living |
| abiotic | nonliving |
| predators | lkills and eats other animals |
| rain is | abiotic |
| base of ecological tyramias | producer |
| immigration and emmigration equal,______ could slow growth | decrease birth |
| beginning of a food chain is | autotroph of producer |
| 3 kinds of eco. pyramids | biomass numbers and energy |
| eats producers and consumers | omnivore |
| reduce competin | less individuals |
| plants ARE | primary producers |
| camels live in the desert this is there | habitat |
| branch of bio dealing with organisms and their interactions of envionment | ecology |
| several species of waribles inthe same tre | different niche |
| lowest level of complexity with living and nonliving factors | ecosystem |
| if population grows larger than the carrying compasity, what is likely to happen | increase death rate |
| water lilies do not grow indesert, because H20 is a | limiting factor |
| if preditor population decrese | prey population increase |
| animal feeds on plants | herbivory |
| movement into range | immigration |
| orgs. need nutrients in order to | carryout life functons |
| animals that eat carcasses | scavengers |
| imatter can be recycled because organisms | can transform it |
| atoms and molecules->cells->tissues->organ->organ system->organism species->population->community->ecosystems->biospere | :D |
| does not require sunlight | chemosynthesis |
| hunt and killsa nd eats | predatur |
| each step in a food web | trophic level |
| herbis and carnis | consumeother organisms |
| total amount of living tissue | diomass |