What are the two major types of isolation? how do each of these types lead to speciation?

How many chromosomes are in a gold fish?

2. cheryl hears a new song on the radio every day during the week on her commute to work. surprisingly, when the song comes on at a party on saturday night, she knows most of the words without trying. describe the three ways that we use cognition to learn without reinforcement. which type of cognitive learning without reinforcement best explains how cheryl knew the song lyrics? explain your answer.

Everything in the universe originated from a single point. how was it possible for everything in the universe to have occupied a single point in space?