Origin Of Species

Question 1

Biological species

Answer 1

a population or group of populations whose members have the potential to interbreed with one another in nature to produce fertile offspring

Question 2

Ecological species

Answer 2

views a species in terms of its ecological niche

Question 3

Phylogenetic species

Answer 3

defines a species as the smallest group of individuals on a phylogenetic tree

Question 4

pre-zygotic isolation

Answer 4

the egg and sperm never meet

Question 5

post-zygotic isolation

Answer 5

hybrid infertility

Question 6

geographic isolation

Answer 6

being separated geographically

Question 7

allopatric speciation

Answer 7

population splits due to a geographic barrier

Question 8

sympatric speciation

Answer 8

population splits into two ADJACENT populations which experience differing selection, low gene flow

Question 9

Adaptive radiation

Answer 9

allopatric speciation

Question 10

Polyploidy

Answer 10

presence of extra sets of chromosomes due to accidents during cell division

Question 11

Autopolyploid

Answer 11

an individual with more than two chromosome sets, derived from one species

Question 12

Gradualism

Answer 12

change throughout time

Question 13

Punctuated equilibrium

Answer 13

slow periods with bursts of change