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

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

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

Who is the kitten's mom?

• #123

• #456

• need more info

• Ms. Canizales because she's a crazy cat lady

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)

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

Which criminal left their DNA at the crime scene?

• Rob

• Nick

• neither

• both

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

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

How do genetics and geography relate?

• geographically closer the more similar the genes

• geographically closer the more different the genes

• geographically further away the more similar the genes

• genetics and geography do not relate