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Unit 7 > Science Final > Flashcards

Science Final Flashcards

1
Q

All the different populations that live together in an area make up a

A

community

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2
Q

All of the organisms that live in a particular area, along with the non living environment is called

A

ecosystem

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3
Q

the lack if surface to attach to is an example of _______ acting as a ______ factor that stops barnacle poplation growth

A

space, limiting

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4
Q

_______ is the process of a gas changing back to a liquid and form cloud

A

condensation

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5
Q

what is an example of a organism that can be both 1st and 2nd level consumer

A

groise

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6
Q

Nitrogen that exists in the air is fixed by ______ in the root nodules

A

Bacteria

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7
Q

______ use nitrogen to make many complex compounds. WHen animals eat thenm, the nitrogen goes to them

A

Plants

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8
Q

Why is it necessary to add a nitrogen based fertilizer to the soil where there was a patch of grass

A

Because plants cannot use “free” nitrogen

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9
Q

what ways are plants involved in the oxygen and carbon cycles

A

photosynthesis, respiration, decompsition

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10
Q

what do lung worms and fly larvae have in common

A

They have different niches in the same habitat

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11
Q

what is the first species to populate a new land called

A

pioneer

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12
Q

_______ succession is a series of changes that allows new species to inhabit an area that already had a pioneer species

A

secondary

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13
Q

grass, trees and weeds are

A

producers

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14
Q

coyotes and vultures are

A

scavengers

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15
Q

According to what law is there a fixed amount of nitrogen on Earth

A

Law of Conservation of Mass

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16
Q

what are 2 examples of ways people increase the amount of carbon dioxide in the atmaosphere

A

driving a car to the store, and cuttign down tree in a forest

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17
Q

what is a relationship in shich one species benfits and the other species is neither helped nor harmed

A

commensalism

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18
Q

list 3 examples of ways prey adapt to survive

A

bright colors, camouflage, and night vision

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19
Q

what would most likely happen if farmlands that used ti be wetands stopped farming ad has water flow through again

A

populations of native wetland plants will recolonize

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20
Q

which ecosystem service matches with : recover from damage

A

regulatory services

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21
Q

which ecosystem service matches with: recreational services

A

cultural services

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22
Q

which ecosystem service matches with: water cycle and nutrients

A

supporting services

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23
Q

which ecosystem service matches with: natural services

A

provisional services

24
Q

what is a similar interaction of fungi and algae that would happen in the real world

A

mutualism between fungi and ants

25
Q

list three thing that describes secondary succession

A

occurs rapidly, natural disruption to ecosystem, soil present

26
Q

what is the differance between the two kinds of ways of extinction can occur

A

Mass- quickly and kills many species background- occurs slowly

27
Q

what are 3 ways that humans are negatively affecting the body

A

introducing invasive species, removing natural resources, Adding carbon to the atmosphere

28
Q

Limiting factors cause the size of population to (stop decreasing/ stop increasing) or to ( increase/ decrease)

A

stop increasing, decrease

29
Q

waste products are an example of

A

biotic factors

30
Q

weather is an example of

A

abiotic factors

31
Q

Pollutants are an example of

A

abiotic factors

32
Q

what is the resistance if the voltage is 10V and the current is 0.5 A

A

20 ohms

33
Q

when a switch is ( open/closed)_______ charges can flow through the circuit. When a switch is ( open/ Closed) ______ the circuit is broken

A

closed; open

34
Q

T or F

even though energy is used to power devices, the energy is always conserved

A

true

35
Q

the largest population that an area can support is called its

A

carrying capacity

36
Q

Mushrooms and worms are

A

decomposers

37
Q

Rabbit, birds, and mice are

A

consumers

38
Q

T or F

Primary succession usually occurs more rapidly than secondary succession

A

false

39
Q

list 2 examples of parasitism

A

deer and nasal bot fly, and deer and lung worm

40
Q

T or F

the longleaf ping tree is typically destroyed by wildfires which is why there are so few left in the south

A

False

41
Q

T or F

According to fossil evidence, fifty percent of all organisms that have ever lived on Earth are now extinct

A

False

42
Q

what are som direct value resources

A

crops and raw materials

43
Q

t or f

if the voltage in a circuit increases and has fixed resistance, the current increases with the voltage

A

true

44
Q

whwhat law states that resistance in a circiut is equal to voltage divided by current

A

Ohms Law

45
Q

what is the difference in electrical potential energy per charge cetween two points in a circuit

A

Voltage

46
Q

what is not an example of higher resistance

A

good conductor

47
Q

Which of the following factors is resistance not dependent on

A

Mass

48
Q

the current flows due to a difference in potential energy called _______. The light bulb is a ______ which slows it down

A

voltage: resistors

49
Q

T or F

Electric current goes in the same direction of the flow of electrons

A

False

50
Q

_____ is a relationship in which one species benefits and the other species is neither helped nor harmed

A

commensalism

51
Q

____ is a relationship in which bother species benefit

A

mutualism

52
Q

_______ is a relationship in which one species benefits and the other is harmed

A

parastism

53
Q

what could be could a trigger to primary succession

A

volcanic eruptions

54
Q

T or F ecosystems services are often produced without help from humans and they are free.

A

true

55
Q

list 3 ways humans protect and restore the ecosystem

A

through\ ecological restoration, through conservation, and by working toward sustainablility to maintain diversity

56
Q
A

Unit 7 (8 decks)

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