science final

study of how organisms interact with eachother

non-living

living

certain plants

indivudauls of a single species that occuoies a given area

consists of all ordanismes that live within a given area

of all the organisms that live within a given area and abotioic factor

a digram of different feesing levels:shows what eats what

each feeding level

make food,usually by protosythesis

an organism that eats another organism

eats producers

eats a frist level consumer

consumers dead organisms

is the total set of biotic and abictic resoures used by a species in a commumity

occures when 2 species live in close assoeiation

• 1. benifets one species and harms the other
• 2.benefits one species and has no effect on the other.
• 3.benefits

the amount of organic matter in an ecoysytem

the rate at which an ecoysytems producers make biomass

diagram showing the flow of energy

close to equator ,warm very large amounts of rain,very biodiverse

found in areas with 4 distnct seasons temperture varies,large amounts of rain, tress shed leaves, makes good farmland

evergreen forest long winter short summer pretty dry not fertile wood used by loggers

cold little precipitation no trees little biodiversity

tropical grasslands warm long dry seasons grass covered with scattered trees

4 seasons,varying temperature,little rainfall,good farmland

mild rainly wnters hot dry summers small tresss and shrubs drought and fire common

little precipitation

incluse the still waters of lakes and pond and the flowing water of rivers and streams

oceans

areas where freshwater joins ocean

materials that make up the bitoic and abiotic world are recycled created or destroyed

the movement of different substances around earth,going back and forth between biotic and abiotic world

sun evaportaes water into the atmosphere------>rain falls on land and water---->ran of canies water to resrvoirs

• -carban in atmosphere is usally part of co2
• -palnts take in co2----->convert to glucose during phohsyn
• -all organisms in food chain use qluecose for energe
• -make co2 and ecxreate it back to atmosphere

• taken in by plants with bacteria that converts ito ammoniun
• other bacteria change ammonium to mitrate
• nitrates taken in plants moves up food chain
• back to soil after excretion or death ----> ammonium goes back to atomphere as nitrogen

is the earths surface layer

is the earths thickest layer rocks that protect the earth core

at the center of the eath lies the core has a radius

wegeners hypothesis sttes that the world contienets are in motion

contients joined together in a single land of mass a supercontient

• is the unifying theroy that explains the dramatic changing surface features of the earth
• -theory that expalins the changing surface of the earth

plates moving away form each other

<----[][]----->

plates move toward eachother

--->[][]<-----

plates slide past eachother

how much an object resists chaning its motion

the amount of matter an object has

force upon an object due to gravity

how much space an object take up

a measure of how much mass takes up a given space

a push or a pull on an object

the total of all of the forces acting on an object

has both magnitude and direction

this occurs when the net force on an object is zero

an upward force opposite to the force of gravity

when one object rubs against something else