Speciation And Evolution (5.19)

Question 1

Give the definition for allopatric speciation

Answer 1

speciation that occurs when biological populations of the same species become isolated due to geographical changes such as mountain building or social changes such as emigration.

Question 2

Give the definition for sympatric speciation

Answer 2

a form of speciation wherein a new species evolves from a single ancestral species while inhabiting the same geographic region

Question 3

Two populations of mice occupy the same habitat but are defined as two different species. State what type of speciation has occurred and give reasoning for your answer

Answer 3

Sympatric speciation has occurred as although they’re two different species they were both originally the same until a change in genetics affected this. As they are also within the same geographical location as one another it’s sympatric

Question 4

Two populations of sloth live on either side of the Andes mountain range and are defined as two separate species. State what type of speciation has occurred to form these two species and give reasoning for your choice

Answer 4

Allopatric speciation has occurred as due to environmental challenges/barriers have caused the species to adapt causing differences in the two species.