About 10,000 years ago two populations of tassel-eared squirrels were separated from
each other. Today these squirrels are so
different that they are unable to interbreed
when brought together.
2
Tassel-eared squirrel
Northern
isolation
Southern
isolation
Kaibab squirrel
Abert's squirrel
Which of the following explains this phenomenon?
A Competition
B Extinction
C Predation
D Speciation

in addition to spreading humanist ideas, erasmus has contributed to criticism of corruption in the church.

brain development. a child's brain undergoes an amazing period of development from birth to three—producing more than a million neural connections each second. the development of the brain is influenced by many factors, including a child's relationships, experiences and environment.

explanation: