HoL, pt 1 Quiz

What evidence provides a glimpse at first life on earth?

• stalactites (hanging from "ceiling" of cave)
• stalagmites (growing from the "floor" of a cave)
• stromatolites (cyanobacteria colonies)
• trilobites (first arthropods)

What is the Cambrian Explosion?

• a time when no life is found in Earth's history, no evidence of evolution
• the Dark Ages--a historical periodization, that asserts that a demographic, cultural, and economic deterioration occurred in Western Europe following the decline of the Roman Empire
• the Mesozoic era; when dinosaurs ruled
• the sudden appearance in the fossil record of complex animals with mineralized skeletal remains

What is the pre-cursor to the spine called?

• appendix
• chordate
• notochord
• spleen

Can certain species of fish give birth to live young?

• Yes
• No

Can evidence of life be found in the strata or layers of rock?

• No
• Yes

The whale ancestor basilosaurus nursed its young but could walk with its hind legs even though it was an aquatic species. Does it deserve its original name of the "reptile king?"

• No
• Yes

We have discussed the evolution of which modern day species?

• crab
• shark
• seagull
• whale