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Envir Sci 1st 9 wks

Environmental Science 1st 9 wks

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
Created by: UFD58