Evolution: Diversity and Unity

Match it! Select the correct answer from the pull down...Good luck!

________ is how species gradually change over long periods of time.

Humans have shaped the evolution of racehorses and dogs through selective breeding. These are examples of _________.

In natural selection, __________ relates the fact that in nature, more organisms are born than are likely to survive.

___________ are changes resulting that enhance an organism’s the ability to survive or reproduce.

Scientists can better understand evolutionary relationships by comparing __________, which are unborn, developing organisms.

In natural selection, __________ are an organism’s ultimate goal, resulting in the continuation of that organism’s genes into future generation(s).

Paleontologists study the _________, which includes the fossils of organisms that lived in the past, to learn about how organisms have changed over time.

In natural selection, __________ determine what resources members of the same species must compete for.