Tri 2 Science Exam

Front 1

define community and give an example

Back 1

all of the populations in a particular area make up a community (lions zebras and hyenas.)

Front 2

define population and give an example

Back 2

members of a species that live in the same area at the same time (human on earth)

Front 3

define ecosystem and give an example

Back 3

all living things and their physical environments within a particular area.

Front 4

defone biosphere and give an example

Back 4

incudes all parts of earth that hosts lives.

Front 5

migration

Back 5

when a species moves to another place.

Front 6

define limiting factor

Back 6

are characters of the environment that limit population growth

Front 7

carrying capacity

Back 7

is the largest population size a given environment can sustainable support.

Front 8

define density independents and give an example

Back 8

limiting factors who's influence is not effected by population density

Front 9

define density dependent and give an example

Back 9

influences changes with population density.

Front 10

define logistic growth pattern

Back 10

describes ho a population initial expenensitial increase is slowed and finally stopped by limiting factors

Front 11

define sampling

Back 11

estimates a population size

Front 12

define biotic factor and give an example

Back 12

any part of an ecosystem that is living or used to be living

Front 13

define abotic factor and give an example

Back 13

any part of an ecosystem that has never been living

Front 14

define predation

Back 14

an individual of one species a predator hunts captures kills and consumes an individual of another species

Front 15

define parasitism

Back 15

relationship of one organism the parasite depends on another the host for nourishment or some other benefits

Front 16

defne herbivory and give an example

Back 16

animas that eat plants

Front 17

define symbiosis and give an example

Back 17

a long lasting and physical close relationship in which at least one organism benefits

Front 18

define genetic drift

Back 18

changes in DNA

Front 19

define speciation

Back 19

process of which new species are generated

Front 20

define resource partitioning

Back 20

a process that allows different species to share common resource

Front 21

defone competition

Back 21

when multiple organisms seek the same limiting source such as food light water and space.

Front 22

define niche

Back 22

describes an organisms use of resources and its functional role in the community

Front 23

defne mutualistic and give an example

Back 23

a reationship in which two or more species benefit

Front 24

define comensalism and give an example

Back 24

when one species benefits while the other is unaffected (the remora and the shark)

Front 25

what is the ultimate source of energy in an ecosystem

Back 25

sunlight

Front 26

defone chemosynthesis

Back 26

the synthesis of organic compound by bacteria or other living organism using energy derived from reactions involving in organic chemicals

Front 27

define photosynthesis

Back 27

the process by which primary producers use sunlight to convert carbon dioxide and water into surgars releasing oxygen along the way

Front 28

what is the difference between mutualism and camensalism

Back 28

mutualism is when both benefit and comensalism is when one benefits while the other is unharmed

Front 29

defone climate

Back 29

weather describes the average conditions of an area over long periods of time.

Front 30

understand and label

Back 30

figure 22 pg 125

Front 31

describe net primary production and which biome has the highest

Back 31

the organic matter or biomes that remains after cellular respiration

Front 32

primary productivety is related to what in aquatic ecosystems

Back 32

limited by sunlight and nutrients

Front 33

what percent of earth surface is covered in water

Back 33

71%

Front 34

describe the aphasic zone

Back 34

the mud and muck at the very bottom of any body of water

Front 35

name the eco systems that are considered fresh standing water

Back 35

ponds lakes in land seas and wet lands

Front 36

how are biomes catagorized

Back 36

climate and typical plant and animal life

Front 37

what are some of the ecosystems services provided by mangrove forests

Back 37

nurseries for fish and shellfish, materials, food, medicine, tools and construction

Front 38

explain the ecological importance of estuaries

Back 38

estuaries prevent soil erosion and flooding

Front 39

what is the correct hierarchy of taxonomic groups from largest to smallest

Back 39

kingdom, phylum, class, order, family, genus, species

Front 40

tigers living in warm climates have thiner coats of fur than tigers living in cool climates this is a result of

Back 40

genetic diversity

Front 41

the easiest component of biodiversity to measure is

Back 41

species diversity

Front 42

which is the most directs way in which biodiversity can provide a source of income

Back 42

ecotourism

Front 43

define biodiversity

Back 43

the variety of life across all levels of ecological organization is called

Front 44

define captive breeding

Back 44

whys that zoos and aquariums help increase wildlife populations part od the SSP carefully ensure safe genetic diversity

Front 45

define cloaning

Back 45

cloning is a form of saving species from extinction

Front 46

define treaty

Back 46

an agreement under international law

Front 47

define extinct

Back 47

the disappearance of a species from earth

Front 48

in recent years at what rate has the population been changing

Back 48

exstinction rate have been higher

Front 49

define life expectancy

Back 49

the average number of years an individual can exspect to live

Front 50

what factors produce the highest rate of population growth

Back 50

more birth rates and lower death rates

Front 51

how did the industrial revolution affect agriculture

Back 51

it gave agriculture better tools to farm faster

Front 52

list three characteristics of human population that are studied by scientists

Back 52

infantmortality, life expectancy, and birth rate.

Front 53

describe the photic zone

Back 53

upper most layer of an aquatic ecosystem where there is enough sunlight for photosynthesis to accur