Exam 18: The History of Life

What adaptations did ancient algae have to make as they washed ashore and evolved into land plants?

The figure illustrates

Prokaryotic cells evolved about__________ years ago.

Pollen eliminated the need for__________ in plant reproduction.

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

Water-based photosynthesis converts carbon dioxide and which of the following to energy-containing molecules?

Most scientists attribute the mass extinction of the dinosaurs to

A major human cultural innovation that happened about 10,000 years ago was the

The first terrestrial plants were descendants of __________.

The hypothesis that certain eukaryotic cell structures may have evolved from a prokaryotic cell being engulfed by a eukaryotic cell is called the

Multicellularity enables organisms to overcome cellular limits and

The hobbit-sized hominin whose fossilized remains were recently discovered on a remote oceanic island belonged to the species

Lobefins are thought to have evolved into__________ .

The earliest life-forms were photosynthetic eukaryotes.

The earliest multicellular animals in the fossil record are

The first land plants were restricted to moist, marshy environments because of

Some scientists theorize that early life was RNA-based.

Scientists find several sets of fossil remains in a cave. The skeletons appear have been buried with stone tools and carved jewelry of ivory and bone. The artifacts are dated to 90,000 years old. The skeletons are anatomically similar to modern humans. Based on this information, the skeletons most likely are all

The earliest group of land plants whose reproduction did not require water for swimming sperm were the

Which is the correct series of events in the evolution of life on Earth?