24. Parapatric speciation would be expected to occur most often:
a. in the same homeland
b. near a common border between two populations
c. within a group of interbreeding populations
d. across obvious geographical barriers
e. by divergence from a common interbreeding population
25. Match the evolution concepts:
_______ gene flow a. can lead to interdependent species
_______ natural selection b. changes in a population's allele frequencies due to chance alone
_______ mutation c. alleles enter or leave a population
_______ genetic drift d. evolutionary history
_______ adaptive radiation e. occurs in different patterns
_______ coevolution f. burst of divergences from one lineage into many
_______ phylogeny g. source of new alleles
_______ cladogram h. diagram of sets within sets
Answer
24)C) within a group of interbreeding populations
Explanation :Parapatric speciation is extremely rare. It occurs when populations are separated not by a geographical barrier, such as a body of water, but by an extreme change in habitat. While populations in these areas may interbreed, they often develop distinct characteristics and lifestyles.
25)
- gene flow
C) alleles enter or leave a population
- natural selection
E) occurs in different pstterns
- mutation
G) source of new alleles
-Genetic drift
B) changes in a population's allele frequencies due to chance alone
- adaptive radiation
F) burst of divergence from one lineage into many
- coevolution
A) can lead to interdependent species
- phylogeny
D) phylogeny
- cladogram
H) Diagram of sets within sets
Of the following evolutionary forces; crossing over, directional selection, mutation, speciation, stabilizing selection, sex, gene flow and genetic drift which promote or maintain genetic variation within a population? a) crossing over only b) directional selection and sex c) directional selection, mutation, and speciation d) crossing over, mutation, sex, and gene flow e) only sex Of the following evolutionary forces, crossing over, directional selection, mutation, speciation, stabilizing selection, sex, gene flow and genetic drift which promote genetic differentiation (divergence) among populations?...