Chapter24

Question 1

biological species concept

Answer 1

criterion for identifying species is reproductive isolation
cannot be evaluated in fossils or species that are asexual

Question 2

prezygotic isolation

Answer 2

individuals of different species are prevented from mating

Question 3

postzygotic isolation

Answer 3

the hybrid offspring do not survive or reproduce

Question 4

phylogenic species concept

Answer 4

identify species based on evolutionary history
monophyletic group - clade or lineage
can be applied to any species

Question 5

synapomorphies (“unique forms”)

Answer 5

Monophyletic groups within a group

Question 6

allopatric isolation

Answer 6

geographic isolation of genes

Question 7

vicariance

Answer 7

physical splitting of habitat

Question 8

polyploidy

Answer 8

Condition of possessing more than two complete sets of chromosomes​

Caused by massive error in meiosis or mitosis