Exam 22: Speciation

The phylogenetic species concept defines species in terms of ____.

Polyploid plants are often unhealthy compared to diploid plants.

Which reproductive isolating mechanism is displayed in a mule, the product of a cross between a horse and a donkey?

If an organism with 64 chromosomes mates with a closely related organism with 62 chromosomes, the most likely result will be ____.

A sterile hybrid plant can form a new fertile species if its chromosomes are doubled. This is referred to as ____.

The biological species concept is primarily based on ____ criteria.

Unreduced gametes are those that contain additional sets of chromosomes.

If two organisms cannot mate due to physical differences, it is known as temporal isolation.

Abrupt genetic changes that quickly lead to the reproductive isolation of a group of individuals will likely lead to ____.