Lucas Flashcards

1
Q

To show you how many organisms are at each level in a food chain, ecologists use a model called a ________ ___ _______.

A

pyramid of numbers

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2
Q

_____ ______ is the transfer of energy that begins with the Sun and passes from one organism to the next in a food chain.

A

Energy flow

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3
Q

__________ is a green chemical that traps the energy of the sun

A

Chlorophyll

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4
Q

Producers use the trapped energy to make food, this process is called _________

A

photosynthesis

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5
Q

The carnivore at the end of the food chain is known as the ___ ________

A

top consumer

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6
Q

A consumer obtains the energy it needs by breaking down high-energy foods, such as sugar and starch in a prosses called ______ ________

A

cellular respiration

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7
Q

______ _______ is the continues movement of water through the environment

A

Water cycle

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8
Q

______ ______ is a model that shows how food energy passes from organism to organism

A

food chain

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9
Q

______ ______ is a network of interconnected food chains in an ecosystem

A

Food web

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10
Q

_______ ______ is a model showing how carbon is used and re-used throughout ecosystems

A

Carbon cycle

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11
Q

__________ is the process when a liquid changes into gas or vapor

A

evaporation

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12
Q

___________ is the process when water that is taken in through a plants roots than evaporates from the leaves, stem and flowers

A

transpiration

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13
Q

_____________ is the process when gas or vapor changes into liquid

A

Condensation

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14
Q

___________ is the process when tiny droplets inside the clouds combine with big droplets which fall on the earth as rain, sleet, snow or hail

A

precipitation

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15
Q

_______ ______ is the water contained on the earths crust

A

Ground water

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16
Q

_____ -____ is water that runs along the surface of the ground into lakes or rivers

A

Run-off

17
Q

_______ is a collective term for the different types of harmful materials

A

Pollution

18
Q

_________ is a material that causes pollution

A

pollutants

19
Q

_____________ is the accumulation of pollutants in other organisms through the levels of the food chain so that organisms higher in a food chain has higher levels of pollutants

A

Bioaccumulation

20
Q

_________ ________ is any living or non-living factor that controls the number of individuals in a population

A

Limiting Factor

21
Q

________ ________ is the maximum number of individuals that an environment can support over a long period of time

A

carrying capacity

22
Q

______ ________ is the steady increase in the temperature of the earths atmosphere

A

Global warming

23
Q

_________ _________ is the gradual change in the make-up of a biological community over time

A

Ecological succession