Patterns and Rates of Evolution

Sharks and dolphins are not related but share some structures that have similar functions.

Over time the African Elephant has evolved into several species specially adapted to their environment.

A hummingbird seems to specially designed to feed from a certain plant

Several species of turtles have a common ancestor but are now different from each other.

Two land birds - the ostrich and the emu - have developed into fast runners with long legs due to similar environmental pressures. Oddly, they do not share a recent common ancestor even though they appear very similar.

The beaver has slowly evolved into the modern organism through many years.

Many species of turtles quickly evolved on the different Caribbean Islands from one ancestor.

When two populations of canaries like to mate during two different seasons of the year. What type of barrier is this?

Two populations of Frogs are separated by a wall that is built around a new park. This barrier is

Two populations of monkeys prefer different areas of the grasslands which keeps them separate. This barrier is

Two populations have been reproductively isolated for 10,000 years. Which of the following is true