Biodiversity Unit Review

What is biodiversity?

• variety of species in an ecosystem

• different physical traits of a single species

• different looking animals in an area

• same species organisms that look different

Answer explanation

BIO means living, DIVERSITY means differences

Tags

NGSS.HS-LS2-2

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Define biotic and abiotic

• biotic = living; abiotic = nonliving

• biotic = alive; abiotic = dead

• abiotic = living; biotic = nonliving

• biotic = animals; abiotic = plants

Answer explanation

BIO means living

Tags

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How can one determine an organisms' relatedness by using their genotype (genes)?

• similar genes show relatedness

• different genes show relatedness

• similar physical appearances show relatedness

• genotypes have no effect in relatedness

Tags

NGSS.HS-LS3-1

Why did the tuskless population increase over time?

• tuskless elephants were not targeted, thus reproducing tuskless offspring

• elephants survived after their tusks were removed

• elephants chose to not have tusks to survive poaching

• females chose for tuskless males

Answer explanation

survivors reproduce and pass on their traits (DNA)

Tags

NGSS.HS-LS3-2

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How can one identify relatedness using electrophoresis gels?

• look for the most bands that are similar

• look for the most bands that are different

• electrophoresis gels never show relatedness

• if bands appear, regardless of their location, this indicates relatedness

Tags

NGSS.HS-LS3-1

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Which criminal left their DNA at the crime scene?

• Rob

• Nick

• neither

• both

Tags

NGSS.HS-LS3-1

What evidence is there to suggest Nick and Rob are related?

• they share allele C

• there are 2 similarities; the well and C

• there is not enough information to identify relatedness

• there is no relatedness because locus B is not shared

Tags

NGSS.HS-LS3-1

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How can DNA be used to determine parentage?

• similarities in alleles/genes show relatedness

• similarities in physical traits show relatedness

• differences in alleles/genes show relatedness

• differences in physical traits show relatedness

Tags

NGSS.HS-LS3-1

How can you identify the mom of the cub?

• mom and baby have at lease 50% match in chromosomes

• mom and baby have 100% match in chromosomes

• mom and baby have at lease 75% match in chromosomes

• you cannot, you need to see the physical appearances

Tags

NGSS.HS-LS3-1

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What is gel electrophoresis used for?

• find matching segments of DNA

• to count the number of DNA fragments

• to separate DNA to find deformities

• to count the number of organisms in the wild