Exam 18: The History of Life

The earliest upright were in a group called australopithecines.

The earliest multicellular animals in the fossil record are

The first multicellular eukaryotic fossils were

The exoskeleton of early marine arthropods can be considered a "pre- adaptation" for life on land because it

Lobefins are thought to have evolved into .

What species of hominin created the cave paintings at Lascaux, France?

The theory that life began in the distant past from nonliving molecules that became able to reproduce themselves is called

-Based on the graph, if 35% of the original 40K remains in a sample of basalt, what is the approximate age of the rock?

What compounds were used in Miller and Urey's experiment to simulate the atmosphere of early Earth?

Amphibians assumed to have evolved from

Cell size is limited by the ability of oxygen, nutrients, and wastes to diffuse through the cell membrane.

Pollen eliminated the need for _ _ in plant reproduction.

The oldest fossils of anatomically modern are 160,000 years old.

The modern- day group of vertebrates that bridges the evolutionary gap between land- dwelling and water- dwelling organisms is

Which of the following scientists was part of a pair who first discovered that cellular reactions can be catalyzed by a ribozyme?

The first animals to move onto land were .

Prior to continental drift, North America and Eurasia formed a supercontinent called .

Modern invertebrates first appear in the fossil record during the

Fossils are aged by a process that examines the of known radioactive elements.

It has been proposed that large brains evolved in Homo species because