Speciation: Allopatric vs. Sympatric

A flash flood carried a raft of Amazon ants away from their original population. There is enough distance between the two groups, that they will never meet in nature again. What type of speciation?

• sympatric

• allopatric

Tags

NGSS.HS-LS4-5

Some female peacocks prefer males with large, colorful tails while other female peacocks prefer males with no tail at all. Females are beginning to only mate with the type of males with the tail they prefer. What type of reproductive barrier is this?

• sympatric speciation

• allopatric speciation

Tags

NGSS.HS-LS4-4

The formation of a new species is called

• Natural selection

• Struggle for existence

• Speciation

• Darwinism

Tags

NGSS.HS-LS4-5

A new river forms and splits two populations, causing ______________ speciation

• Sympatric

• Allopatric

A speciation in which new species evolve from a single ancestral species while inhabiting the SAME geographic region.

• Sympatric speciation

• Allopatric speciation

Tags

NGSS.HS-LS4-4

NGSS.HS-LS4-2

Orcas occur in the same habitat but some are avoiding each other and do not interbreed. They have different diets, vocal behavior, and social structures. What type of speciation is this?

• Allopatric

• Sympatric

when the organism develops different courtship rituals which do not attract main population this is a part of ____________ speciation.

• Allopatric

• Sympatric

The emergence of a mountain range is an event that would lead to _______________ speciation

• Allopatric

• Sympatric

When the Grand Canyon in Arizona formed, two populations of one squirrel species were separated by the giant canyon. This is an example of _____________ speciation.

• Allopatric

• Sympatric

Tags

NGSS.HS-LS4-4

NGSS.HS-LS4-2

Different finch populations lived on separate islands with different environments. They evolved to best adapt to those particular environments and can no longer mate. What type of speciation is this?

• Allopatric

• Sympatric

Tags

NGSS.HS-LS4-4