biodiversity Flashcards

(29 cards)

1
Q

biodiversity defenition

A

the number of species and the number of individuals in each spiecies in a specific area

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2
Q

why is there more biodiversity at the equator

A

higher levels of light intenstiy
more photosynthesis
more plants
more herbivores
more carnivores

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3
Q

3 reaosns why biodiversity change overtime

A
  • succession
  • natural selection
  • human influence
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4
Q

potential negative impacts of reduce biodiversity (3)

A
  • raw materials for industry
  • chemicals for medicinal drugs
  • charecteristics to breed into crops
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5
Q

cofia checkio sut i neud yr simpsons index thingy gal!!

A
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6
Q

example of polymorphism

A

eye colours
blood groups

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7
Q

what is the link between polymorphism and biodiversity

A

more alleles
more variation
more biodiversity

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8
Q

what is locus

A

gene position on a chromosome

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9
Q

what is the gene position on a chromosome

A

locus

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10
Q

what does locus show

A

polymorphism

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11
Q

when does locus show polymorphism

A

if the have 2 more alleles

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12
Q

relationship between alleles and biodiversity

A

more alleles the gene has the greater biodiversity

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13
Q
A
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13
Q

relevance of proportion of alleles and biodiversity

A

low relative biodiversity if the frequency of one allel is much greater than the frequency of other allels within the gene pool of a population

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14
Q

how do you asses biodiversity

A

dna profiling

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15
Q

what are single base differences called

A

SNP
single nucleotide polymorphism

16
Q

what does natural selection do with biodiversity

A

increases but can also reduce it (polar bear habitat loss)

17
Q

whats the name of regions of DNA variation which repeats often

A

hyper variable regions (HVR)

mutated / evolved more

18
Q

how many steps for natural selection

19
Q

6 steps of natural selection

A

1 - mutation
2- variation
3 - competitive advantage
4 - survival of the fittest
5 - reproduction
6 - pass advantageous alleles to offspring

20
Q

what are the 3 types of adaptions

A

anatomical traits
physiological traits
behavioural traits

21
Q

what is the significance of anatomical traits

A

changes to anatomy of the body

22
Q

examples of anatomical traits

A

streamlined bodies

23
Q

what is physiological traits

A

causes changes to occur to the ‘body’ of the organism

24
example of physiological traits
reset body temp to be lower when hybernating happens every year so they can survive
25
examples of behavioural traits
eg mating rituals
26
more different ________ the more th4e viodiversity
single nucleotide polymorphisms hyper variable regions
27
whats the name of the king philpi groups
taxonomic groups
28
5 kingdoms
prokaryota Animalia Plantae Fungi Protista