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Undeleted > science > Flashcards

science Flashcards

1
Q

What are the difference between Abiotic and biotic

A

Abiotic: are non living ex) rocks sun
Biotic: are living things ex) wolf humans

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2
Q

Explain what species is

A

Living things of the same kind that are able to reproduce

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3
Q

Explain population

A

All individuals of one species living in a certain place at the same time

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4
Q

What is community

A

All population of different species living and interacting in the same place

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5
Q

What are the basic needs of a living organism in order to survive

A 
Water
Energy 
Food
Exchange gases
Habitat
Wast disposal
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6
Q

what is symbiosis

A

The relationship between species where at least one species benefits

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7
Q

What is parasitism

A

The relationship between where one species benefits and the other is harmed (+,-)

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8
Q

What is mutualism

A

Where both species benefits (+,+)

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9
Q

What is commercialism

A

Where one species benefits where the other isn’t harmed

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10
Q

What is behavioural adaptations

A

Things organisms do to survive

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11
Q

What are structural adaptations

A

Physical features like fur on a bear

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12
Q

What is the difference between a dump or landfill and sanitary landfill

A

Sanitary are designed not to leak. a clay liner and system of pipes is put in place to prevent leakage

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13
Q

What is the difference between consumer and producers

A

Producers: living things at beginning of food chain making its own food

Consumer: living things that relies on other living things for food

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14
Q

What are Carnivora

A

Feed on animals or animal parts

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15
Q

What are herbivores

A

Feed on plants

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16
Q

What are omnivores

A

Feed on both animals and plants

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17
Q

What are the three main processes responsible for the water cycle

A

Evaporation, condensation, precipitation

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18
Q

What is bioinvasion

A

Accidental or planned introduction of a non native species into a community

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19
Q

Describe the difference between primary succession and secondary succession

A

Primary succession: occurs when there is formation of a new community of what was ones barren habbitat

Secondary succession: occurs when there is a formation of a new community in a destroyed or greatly changed community

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20
Q

What is pioneer species

A

The first species to be established in a certain habitat

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21
Q

What is climax community

A

A general stable community that has a wide range of species; the temporary end of succession

22
Q

What are the difference between threatened endangered extirpate and extinct

A

Threaten-describe a species who’s numbers are declining

Endangered-describes a species that is so rare that is in danger of disappearing or becoming extinct

Extinct-describes a species that is no longer on earth

Extirpated-describes a species that no longer exists is a specific area though it still exists elsewhere

23
Q

What is meant by sustainable life style

A

A lifetime that can be maintained or continued; capable of being used indefinitely, often referring to the use of resources

24
Q

Explain the plant structure roots is

A

Absorb water and dissolved nutrients; anchor the plant in the soil

25
Q

Explain the plant structure stem

A

Provides pathway for movement of water and food; support the leaves and reproductive structures

26
Q

Explain the plant structure leaves

A

Produce food for the plant; take in and release oxygen and carbon dioxide allow water to exit the plant

27
Q

Explain the plant structure flowers

A

Each flower usually has both male and female parts for reproduction

28
Q

Explain the plant structure seeds

A

Contain an embryo that will form a new plant; contain a food supply for the embryo

29
Q

Explain the plant structure cones

A

There are separate male and female cons for reproduction

30
Q

Explain life process transpiration

A

The evaporation of water from the surface of the plant mainly from the leaves transpiration pulls the water up from the roots

31
Q

Explain the life process of diffusion

A

The movement of particles from a area of high concentrations to an area with low concentration

32
Q

Explain the life process of osmosis

A

The movement of water particles from a cell with high water concentration to low

33
Q

Explain the life process of photosynthesis

A

The process by witch plants use light energy, carbon dioxide, and water to make their own food

34
Q

Explain the life process of cellular respiration

A

The process in witch cells break down sugar particles into carbon dioxide, water, and energy

35
Q

What are the three stages of the life cycle of a typical seed plant

A

Seed —>seedling—>adult

36
Q

Explain the process of pollination

A

Occurs after a pollen grain lands on a stigma of a flower it is the process witch male and female parts of a plant join to produce a seed

37
Q

What organisms are considered to be pollinators

A

Species of bird insect and bats can be pollinators

38
Q

What are the three types of vegetative reproduction

A

Runners, rhizomes and suckers

39
Q

What are the difference between cutting and graphing

A

Cutting is small pieces of a plant that usually have a part of the stem a few leaves graphing is attaching a part of one plant to another

40
Q

Give an example of food

A

Fruits and vegetables

41
Q

Give an example of fibre

A

Wooden house frame and plywood cloth for clothing and paper products

42
Q

Give an example of Medicine

A

Tea made from white spruce and hemlock was used to cure scurvy

43
Q

aesthetics

A

the pleasing appearance or effect that an object has, (not all structures need to be aesthetically pleasing)

44
Q

beam bridge

A

the most common bridge used, is flat, and supported at 2 ends. a longer beam bridge may be supported by other stuff

45
Q

arch bridge

A

designed to with stand heavy loads. the dynamic loads of people cause pieces of wood or stone in arch to push against the pieces.

46
Q

truss bridge

A

light weight, but strong, made of trusses (triangle) along its sides.

47
Q

suspension bridge

A

hangs between two ends that holds it up, modern one has tall towers on ends that supports main cables. those cables are anchored in concrete, smaller cables support roadway

48
Q

performance requirements

A

conditions that a structure must meet. performance requirements also apply to many other aspects of a structure like safety, effectiveness, and purpose

49
Q

what do you have to verify in a structure

A

the climate, culture, tradition, tech, economics

50
Q

what is deformation

A

change of shape in a structure or any structural component, because the material is unable to resist the load acting on it.

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