HISTORY OF LIFE ON EARTH QUIZ

The Earth is now around ___________ years old

_______may be divided into epochs which last for less than ten million years, periods lasting for ten million of years, eras which lasts for hundreds of million years and in eons which lasts for billions of years

Plant life first appeared on _____.

MESOZOIC ERA Also known as ______ started around 245 million years ago and lasted for 180 million years.

________were most abundant during this era because their seeds were protected to endure the dry weather.

Fossils believed to represent the _______ with hard body parts were recently discovered in South Australia.

These spongelike fossils, named ___________, date back as far as 560 million years and are believed to show the existence of hard body parts and spicules that extended 20-40 cm from the main body.

Laurentia and ________ were continents located near the equator that subsumed much of the current-day landmasses in a different configuration.

During the ______ marked by further animal evolution and the emergence of many new orders, families and species

The first plants to colonize land were most likely closely related to modern day mosses (________) and are thought to have appeared about 500 million years ago.