Unit 2 of Science Flashcards

1
Q

Ecosystem

A

An area where living things interact with other living
and non-living things

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2
Q

Ecosystem

A

An area where living things interact with other living
and non-living things

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3
Q

Biotic

A

Living things in the environment, such as humans, plants,
birds, animals, and insects.

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4
Q

Biotic

A

Living things in the environment, such as humans, plants,
birds, animals, and insects.

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5
Q

Species

A

a group of organisms that reproduce with each other

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6
Q

Population

A

Members of species that live in the same
area and share resources

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7
Q

Biotic

A

Living things in the environment, such as humans, plants,
birds, animals, and insects.

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8
Q

Abiotic

A

Non-living physical features of the environment, such as air,
rocks, water, and temperature.

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9
Q

Population

A

Members of species who live in the same
area and share resources

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10
Q

Community

A

Populations of different species interacting and sharing resources

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11
Q

Needs of living things

A

water
food
habitat or living conditions
Oxygen and exchange gases.

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12
Q

Symbiotic Relationships

A

where two species live closely
together in a relationship

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13
Q

Mutualism

A

both organisms benefit from the relationship.

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14
Q

Commensalism

A

one organism benefits and the other organism appears
neither to gain nor lose from the relationship.

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15
Q

Parasitism

A

one organism benefits and the other organism is harmed
from the relationship

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16
Q

A parasite

A

organism that obtains nourishment or other life support from a host.

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17
Q

Adaptation

A

characteristic that helps an organism survive
and reproduce

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18
Q

Structural adaptations

A

physical features like the beak on a bird or the fur on
a rabbit. These features help them survive.

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19
Q

Behavioral adaptations

anwser with examples

A

bird calls, migration and looking both
ways before crossing a street are
behavioral adaptations.
Adaptation

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20
Q

Natural Resources

A

how we meet our basic needs

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21
Q

Non-renewable resources

A

cannot be produced, grown, or generated

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22
Q

Renewable resources

A

are replaced by natural processes

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23
Q

Consumers

A

Any organisms that must seek out and eat

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24
Q

Herbivores

A

animals that eat plants

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25
Q

Carnivores

A

animals that only eat other animals

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26
Q

Omnivores

A

animals that eat plants and animals

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27
Q

Scavengers

A

feed on dead or decaying matter

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28
Q

Decomposers

A

feed and break down organic matter

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29
Q

Producers

A

organisms that
use energy from the sun to
make their food

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30
Q

Cellular Respiration

A

chemical reaction that occurs within the cells of all living
things

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31
Q

Cellular Respiration is …….

A

Photosynthesis backwards

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32
Q

Cellular Respiration is …….

A

Photosynthesis backwards

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33
Q

Cellular Respiration is …….

A

Photosynthesis backwards

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34
Q

What is a food chain

A

food chain is a diagram that shows
how energy moves

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35
Q

Where does energy come from

A

the sun

36
Q

What does a food chain start with

A

PRODUCERS

37
Q

Who is the primary consumer

A

Herbivore

38
Q

Who is the secondary consumer

A

carnivore

39
Q

How much energy is lost through breathing heat and digestion

A

90%

40
Q

How much energy is transferred between organisms

A

10%

41
Q

What are food webs

A

food chains linked

42
Q

Is a food web more realistic than a food chain

A

Yes

43
Q

pyramid of numbers

A

shows the number of organisms on each level

44
Q

Pyramid of biomass

A

how much each level weighs

45
Q

Bioaccumulation

A

substance builds up in
an organism’s body from the
surrounding air or water, or
through consumption

46
Q

Bioaccumulation

A

substance builds up in
an organism’s body from the
surrounding air or water, or
through consumption

47
Q

Biomass

A

total mass of all the organisms in an
ecosystem.

48
Q

What does changes in either
abiotic and biotic
factors do

A

affect the members of the food web

49
Q

Bioaccumulation

A

substance builds up in
an organism’s body from the
surrounding air or water, or
through consumption

50
Q

Run-off

A

Water that runs off the ground into lakes, rivers or streams.

51
Q

Run-off

A

Water that runs off the ground into lakes, rivers or streams.

52
Q

Ground water

A

Water stored in soil

53
Q

what do we call when matter continually moves
from the abiotic environment
to the biotic environment.

A

a cycle

54
Q

Ground water

A

Water stored in soil

55
Q

what are living and non living things made of

A

made up of matter.

56
Q

4 major components of the water cycle

A
  • Evaporation
  • Transpiration
  • Condensation
  • Precipitation
57
Q

Ground water

A

Water stored in soil

58
Q

Run-off

A

Water that runs off the ground into lakes, rivers or streams.

59
Q

Quadrat Analysis

A

square plot that
represents the
surrounding ecosystem –
create an population estimate

60
Q

Quadrat Analysis

A

square plot that
represents the
surrounding ecosystem –
create an population estimate

61
Q

Quadrat Analysis

A

square plot that
represents the
surrounding ecosystem –
create an population estimate

62
Q

Ecology

A

study of organisms and how they interact with the
environment around them

63
Q

Ecologists

A

people study the interactions between living things and their
environment

64
Q

Quadrat Analysis

A

square plot that
represents the
surrounding ecosystem –
create an population estimate

65
Q

Bioinvasion

A

New species added to the food web/chain

66
Q

When is a species considered invasive

A

when its ability to survive in its new conditions allows it to outcompete species.

67
Q

Predator

A

organisms that catches and eats other organisms

68
Q

Prey

A

organisms that is caught and eaten

69
Q

Does the relationship
between predator and
prey cause both
organisms to evolve

A

Yes

70
Q

factors that can affect interactions in an
ecosystem

A

Weather

71
Q

Succession

A

Gradual process

72
Q

2 Types of Succession

A
  1. Primary Succession
  2. Secondary Succession
73
Q

Primary Succession

A

start of a new ecoystem

74
Q

What do mosses and lichen do in primary sucession

A

break down rocks until they become soil

75
Q

Organisms that first
appear are called

A

pioneer species

76
Q

Secondary Succession

A

regeneration of a area after a disturbance

77
Q

In Secondary Succession Some original species ……………..
, some get ………..

anwser with word bank

displaced endargered remain hunted

A

1 remain 2 displaced

78
Q

DDT

A

Chemical
pesticide that
was used to
kill mosquitos

79
Q

Extinction

A

Occurs when
a species no
longer exists

80
Q

Endangered

A

in danger of becoming extinct

81
Q

Ecosystem Monitoring Physical

A

Uses aerial images to track changes

81
Q

Threatened

A

Species whose numbers are quickly declining

82
Q

Ecosystem Monitoring Chemical

A

Assesses the quality of air, soil and water

83
Q

Ecosystem Monitoring Biological

A

Tracks the changes in organisms or populations

83
Q

Ecosystem Monitoring Environmental

A

Tracks changes in climate, temperature and weather patterns