traces or remains of ancient life

numbers of different species in an area

mechanism for species' change over time

dolphin's flipper or a bird's wing

a large-scale disappearance of many species

A(n) ___ is the disappearance of many species in a short time.

Species adapt to the environment through the processes fo mutation and ___.

Dinosaur bones are examples of ___.

New species can form when ___ split into small groups.

Tropical rain forests have high ___ compared with deserts.

Teachers: Create FREE classroom games with your questions Click for more info!
©2007-2024 Review Game Zone | About | Privacy | Contact | Terms | Site Map