Exam 13: Paleozoic Life History Vertebrates and Plants

A group of small, lizard-like reptiles are among those which are the earliest known reptiles are called ____.

Fish with muscular fins attached to the body by a fleshy shaft and a series of articulating bones are ____.

What were the most successful type of Paleozoic plants in non-swampy environments?

Which lab tool would be most useful to a palynologist?

The early fish were jawless and armored, and inhabited shallow marine waters.

Part of the gill structure in jawless fish evolved into jaws.

Discuss the development of reptiles from amphibians. What changes were necessary to allow reptiles to remain on land all the time? Why did this change allow access to many new environments for the reptiles to occupy?

Animals that can live for extended periods on land, but must return to water-based environments to reproduce are ____.

The evolution of seeds allowed plants independence from underwater environments and to spread over all land types.

Ostracoderms developed before cartilaginous fish.