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93 Cards in this Set

  • Front
  • Back

Define the term ecosystem

a community of living organisms and nonliving objects that interact as a system

define the term niche

the position of a population or species in an ecosystem

define the term predation

the hunting and killing of an animal to benefit the predator

define the term predator

a living organism that preys on other living organisms for food.

define the term prey

a creature that is killed by a predator for food.

define the term mutualism

a symbiotic relationship where both parties benefit

define the term commensalism

a symbiotic relationship in which one party benefits, and the other party is not affected

define the term parasitism

a symbiotic relationship where one party benefits, but the other one is harmed

define the term host

the party that is affected negatively in the parasitic relationship

define the term Abiotic factors

Factors that are not alive/Non-Living factors

define the term Biotic Factors

Living creatures/Factors that are alive

define the term producer

An organism that produces its own food

Define the term consumer

an organism that relies on other organisms for food.

define the term food chain

A linear transfer of energy from one organism to the next

define the term food web

several food chains linked together

define the energy pyramid

the transfer of energy from producer, to herbivore, to carnivore, and then to decomposer. each transfer has 1/10th of the energy from the previous transfer.

What is the main source of energy in an ecosystem?

The Sun

Which organism is always on the bottom of the energy pyramid?

producers

Name 4 Biotic factors, and 4 Abiotic factors of an enviroment

biotic: grass, mouse, deer, moose, sloth, monkey, mushroom, etc...




Abiotic: rock, water, dirt, sun, air, land, etc...

How might removing one species from a food chain affect species that eat it?

they will compete more for food, or they will starve

Define the term topographic map

a map used to detail altitude and the shape of hills and mountains. usually they are very detailed.

define the term elevation

distance from sea level

define the term contour lines

a line on a map joining points of equal elevation

define the term topography

a detailed description of an area in a map that describes elevation and hills.

define the term contour intervals

the distance from one contour line and another

define the term index contours

contour line that is darker than the other lines, usually placed every 5 contour lines

what is a topographic map?

a map used mainly to define a land-form and the area around it, using elevation to describe certain terrain

How can you determine the steepness of a slope looking at a topographic map?

the distance between the contour intervals

how can you determine the direction a river is flowing on a topographic map?

find out the contour of the land, and downhill is the direction it is flowing

how can you tell the difference between a hill and a depression

the depression has a hatched design, rather than a smooth and blank one

what is weathering and erosion and what land features do they form?

weathering is the breakdown of objects due to nature, and erosion is the movement of the sediment created by weathering. these create land forms such as caves, sink holes, river mouths, and hills

define the term axis

the invisible line that all planets spin on

define the term rotation

the spinning of a celestial body around its axis

define the term revolution

the orbit of a celestial body around another celestial body

define the term solstace

the time when the sun reaches its highest or lowest point from earth

define the term equinox

the time when the sun is parallel with earths equator, and the day and night are the same length

define the term moon phase

the way the moon looks as the sun shines on different parts of it

define the term new moon

a time when no visible light reflects back to earth from the moon, and it cannot be seen

define the term waxing

to grow larger

define the term full moon

the time when the entire bright side of the moon can be seen from the earth, and the moon is at its biggest point

define the term waning

to shrink in size

what causes seasons?

the relative distance that the sun is from different hemispheres of the earth. this is due to the 23.5 degree tilt of the earth

why do we have moon phases?

because the sun lights up different parts of the moon throughout its cycle, and we can only see one part of the moon

name all the phases of the moon

new moon,Waxing crescent, 1st quarter, Waxing Gibbous, Full Moon, Waning Gibbous, 3rd Quarter, Waning Crescent.

Define the term Continental Drift

the movement of the Tectonic Plates relative to each other.

Define the term Pangea

A super continent that existed millions of years ago

What is seafloor spreading

the theory that as old land is sucked back into the core, new land is spewed out into the earth through vents on the seafloor

Define the term plate tectonics

the theory that states that the earths crust is made up of plates, and that they move around on the surface, colliding with one another

define the term plate

the huge chunks of land that float over the mantle

define the term asthenosphere

area between the mantle and the lithosphere

define the term convection current

the currents in the asthenosphere that cause the plates to move

define the term divergent boundary

a boundary between plates where they are moving apart

define the term convergent boundary

a boundary between plates where they are colliding

define the term subduction zone

the area in which old crust is sucked back into the mantle by convection currents

define the term transform boundary

a boundary where plates are sliding up against one another.

why were Wegener's ideas about continental drift initially rejected?

because he could not explain how new land was formed

what evidence did Wegener have to support his theory?

there was coal in Antarctica, there were similar fossils in different coasts apart from each other, and there were mountain ranges that seemed to connect when you lined them up with other continents

how do the ages of rocks on the ocean floor support Hay Hess's theory of seafloor spreading?

the newer rock was close to the rifts, and the oldest rock was found on the coast

define the term atmosphere

the large layer of gas held down to earth by its gravity. shields the earth from radiation, and also allows life to form.

define the tern troposphere

the part of the atmosphere where all life exists

define the term radiation

the emission of harmful particles and rays of energy from decaying molecules

define the term conduction

the transfer of heat energy by contact

define the term convection

the transfer of heat energy by cooling and heating liquids and gas

define the Coriolis effect

deflection of an object in reference to a rotating object

define the term jet stream

thin, fast flowing currents found in our atmosphere

define the term sea breeze

at night, when the land cools down before the sea does, a breeze comes from the sea to the land

define the term land breeze

during the day, when the sea stays cool for longer than the land, a breeze come from the land, to the sea

why do some areas of earths surface get more sun that others?

because the earth is tilted

define the term weather

the state of the atmosphere at a place and time

define the term air mass

how dense the air is

define the term of highs and lows when referring to air pressure

when the air pressure is high, it will go to an area of low pressure. low pressure is when the air is less dense, while high pressure is the oposite

define the term front

a large "cloud" of either high or low pressure, causing sudden changes in temperature and weather

define the term hurricane

when a tropical storm reaches critical mass, and the wind speed exceeds 75 mph then it becomes a hurricane

define the term station model

a model that shows the current weather, and temperature, as well as wind speed of an area

define the term isotherm

a type of equal temperature on a given date

define the term isobar

a line on a map that connects two areas with the same atmospheric pressure

why is fair weather common in areas of high pressure?

because high pressure areas do not get clouds due to the wind.

how does a cold front form?

when an area of low pressure hits an area of high pressure, and goes underneath it

what is a station model?

it is a model used to show all the atmospheric facts about an area

define the term surface currents

the currents on the surface of the ocean, that are formed by wind

define the term upwelling

a process in which deep, cold water rises to the surface of the ocean

what is El Nino

a complex series of atmospheric changes to the California area

how do winds create surface movement?

by pushing the water in the direction of the wind

how does the rotation of the earth modify ocean currents in the northern hemisphere?

it causes the eastern currents to flow slower than the western currents

what kind of current is the gulf stream?

a warm ocean current

why are there more warm water currents

because heat rises

where do warm currents originate? the cold currents?

worm comes from the equator. cold comes from the poles

what side of the us is the gulf stream? the California current? is this a trend?

east, west, and yes

what is a major force behind the creation of the tides?

the moon


how do spring and neap tides differ

one is an increase of the tides, another one is a dull of the tides

what is the human impact of overfishing?

the fish are going extinct and there is less for the predators to eat

what is the human impact of oil spills?

the ocean is being poisoned and all life is killed around an oil spill

what are the human impacts of marine debris?

the environment is being tainted, and creatures are being killed in the debris