Species Concept and Barriers

A species concept that defines a species in terms of its body shape and other structural features.

• morphological species concept
• ecological species concept
• phylogentic species concept
• temporal species concept

An example of a postzygotic barrier in which the hybrid experiences sterility is/are _______ 

• sea urchins
• mules
• strains of rice
• liger

Mating is attempted, but morphological differences prevent its successful completion.

• temporal isolation
• mechanical isolation
• gametic isolation
• habitat isolation

Tags

NGSS.HS-LS4-4

Courtship rituals that attract mates and other behaviors unique to a species are effective reproductive barriers, even between closely related species. 

• mechanical isolation
• habitat isolation
• temporal isolation
• behavorial isolation

Tags

NGSS.HS-LS4-4

Species that breed during different times of the day, seasons or years cannot mix genes.

• behavioral isolation
• gametic isolation
• temporal isolation
• habitat isolation