MYP Biology Topic 5.10 Speciation and Extinction…

True or False: The incomplete nature of the fossil record is considered a significant piece of evidence that weakens the validity of evolutionary theory.

Which mechanism acts as a post-zygotic barrier in sympatric speciation by preventing the mixing of gene pools even if mating between two different groups occurs?

Which factor provides the raw genetic variation necessary for populations to diverge over many generations during the process of speciation?

For speciation to occur, a lack of __________ is necessary to prevent alleles from mixing between separating populations.

In a ring species, what prevents the two terminal populations from successfully interbreeding if they come into contact?

Geographical barriers

Behavioral differences

Differential selection

differential selection

environmental pressure

They have accumulated enough genetic and behavioral differences to be reproductively incompatible

They are physically separated by a new geological barrier

They are forced to share identical selection pressures that prevent mating

They maintain high levels of gene flow with each other

MYP Biology 5.10 Speciation and Extinction Questionbank

MYP Biology 5.10 Speciation and Extinction Questionbank

MYP Biology 5.10 Speciation and Extinction Questionbank

MYP Biology 5.10 Speciation and Extinction Questionbank

MYP MYP Biology Topic 5.10 Speciation and Extinction Questionbank