global issues Flashcards

(31 cards)

0
Q

what is genetic engineering

A

manipulate the DNA of an organism to make it healthier or stronger

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1
Q

what is biotechnology

A

refers to technology used to manipulate as organism

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2
Q

what is whole organism cloning

A

coping an entire organism

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3
Q

what is a transgenic organism

A

have had DNA from one organism inserted into their own DNA In order to carry out a particular function

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4
Q

why are transgenic organisms made and egs

A

for agricultural purposes to increase the quality and quantity of the crops or livestock- such as chinook salmon- increase production in shorter cost

for health purposes- human insulin

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5
Q

advantages and disadvantages of human cloning

A

advantages- able to develop two identical people

disadvantages- unnatural and unethical

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6
Q

what is an extremophile

A

bacteria that can survive in extreme conditions

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7
Q

what is an egs of an extremophile

A

thermopile

  • thrives in high temperatures
  • found in various heated regions eg hot springs
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8
Q

why do we study extremophiles

A

in order to discover other planets where life may not be as hospitable as earth

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9
Q

what is the habitable zone

A

region in space where conditions are best for life

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10
Q

what planets are located in the habitable zone

A

earth

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11
Q

what is the gliese 581 system

A

solar systems that is believed to have life

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12
Q

why might mars have life

A

it is thought to be hospitable in the passed

rovers have documented dried water features

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13
Q

why might Europa have life

A

it is covered in ice although some ocean has been created due to the melting ice

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14
Q

what does the Mars rover do

A

takes dirt samples, photographs, does chemical testing, drills holes

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15
Q

what is quenching

A

method which hardens steels

16
Q

what is smelting

A

putting metals in a furnace

17
Q

what is an ore

A

naturally occurring solid material

18
Q

name an important ore in Australia

19
Q

what are some metal properties

A

malleable
conduct heat and electricity
strong

20
Q

what are some uses of metals

A

ornamental
weaponry
cooking utensils
railways

21
Q

what is 1 micrometer

A

1000 nanometers

22
Q

how many micrometers in 1 mm

23
Q

what are some applications of nanotechnology

A

stain repellent fabrics, sunscreen, scratch resistant surfaces, windscreen coating

24
what is superconductivity
when substance have no electrical resistance when they are cooled
25
what is artificial intelligence
computer science focusing on machines that can engage on behaviors that humans consider to be intelligent
26
what are some issues relating to AI
control humans used for warfare increase in life span or population very powerful
27
what are the benefits or crude oil
use in almost all everyday objects
28
what are some materials produced form crude oil
``` plastic gas tar glass batteries creams ```
29
what are the problems with crude oil
it's not renewable- running out | adds to the greenhouse effect
30
what is a biofuel
fuel derived from living matter