Science Exam 6Th Grade Ch 3

Front 1

community

Back 1

all of the populations of species that live in the same habitat and interact with each other

Front 2

decomposer

Back 2

the breakdown of substances into simpler molecular substances

Front 3

ecosystem

Back 3

a community of organisms and their abiotic or nonliving environment

Front 4

food web

Back 4

a diagram that shows the feeding relationships between organisms in an ecosystem

Front 5

omnivore

Back 5

an organism that eats both plants and animals

Front 6

prey

Back 6

an organism that is killed and eaten by another organism

Front 7

producer

Back 7

living things that makes its own food

Front 8

scavenger

Back 8

animals that eat a dead animal it finds

Front 9

water cycle

Back 9

the movement of water between the oceans, atmosphere, land, and living things

Front 10

host

Back 10

an organism that gets harmed ex: dog and a flea

Front 11

parasite

Back 11

an organism that benefits

Front 12

carbon-oxygen cycle

Back 12

the exchange of carbon between the environment and living things.
Photosynthesis is the basis of this plants use it from the air to make sugars it is returned when sugar molecules are broken down to release energy called respiration, uses oxygen

Front 13

consumer

Back 13

a organism that gets its energy from other living things

Front 14

food chain

Back 14

the pathway of energy transfer through various stages as a result of the feeding patterns of a series of organisms

Front 15

herbivore

Back 15

an organism that eats only plants

Front 16

nitrogen cycle

Back 16

movement of nitrogen through an ecosystem

Front 17

extinct organism

Back 17

an organism that was once alive but no longer exist.

Front 18

population

Back 18

a group of organisms of the same species that live in a specific geographical area

Front 19

predator

Back 19

an organism that eats all or part of another organism

Front 20

Ecology

Back 20

the study of the interactions of living organisms with one another and with their environment

Front 21

biotic

Back 21

describes living factors in the environment

Front 22

abiotic

Back 22

describes the nonliving part of the environment, including water, rocks, light, and temperature

Front 23

biosphere

Back 23

the part of Earth where life exists

Front 24

symbiosis

Back 24

a relationship in which two different organisms live in close association with each other

Front 25

mutualism

Back 25

a relationship between two species in which both species benefit

Front 26

commensalism

Back 26

a relationship between tow organisms in which one organism benefits and the other is unaffected

Front 27

carrying capacity

Back 27

the largest population that an environment can support at any given time

Front 28

evaporation

Back 28

the change of a substance from a liquid to a gas

Front 29

condensation

Back 29

the change of state from a gas to a liquid

Front 30

precipitation

Back 30

any form of water that falls to the Earth's surface from the clouds

Front 31

organism

Back 31

all living things

Front 32

adaptation

Back 32

any alteration in the structure or function of an organism or any of its parts that results from natural selection and by which the organism becomes better fitted to survive and multiply in its environment.

Front 33

transpiration

Back 33

plants release a large amount of water vapor

Front 34

groundwater

Back 34

when some precipitation seeps into the ground and is stored in spaces between or within rocks

Front 35

surface water

Back 35

water in rivers, lakes, and oceans

Front 36

runoff

Back 36

the precipitation that falls on land and flows into bodies of water