Earth's origin review Quiz

What is a homologous structure?

• resulted from divergent evolution

• similarities due to shared ancestry

• perform different functions but look similar in the inside

• all of the above

The addition of oxygen to the atmosphere stimulated the rapid development of ------.

• eukaryotes

• aquatic life

• colonization of land

• lung development in amphibians

What ended Pangea?

• Continental drift

• earthquakes

• plate tectonics

• all of the above

Adaptive radiation was necessary to avoid extinction due to what occurrence?

• asteroid crashing to earth

• Pangea

• the ice age

• cambrian explosion

The body plan of an embryo is controlled by

• the dix gene

• homologous attributes

• the hox gene

• all of the above

Adaptations that may have first evolved for one use then evolved to another use

• hox genes

• homeotic

• Exaptations

• amalagous

In the origin of life sequence, where does the formation of protobionts fall in sequence?

• after synthesis of organic polymers but before genetic based systems

• before synthesis of organic monomers

• after formation of genetic based systems

• between synthesis of organic monomers and organic polymers

What characteristics would be evident in a 3.5 billion year old stromatolite?

• RNA

• vesicles

• ribozymes

• all of the above

Which genetic material is older?

• protocells

• peptidoglycan

• RNA

• DNA

According to Oparin & Haldane, all of the following were thought to compose early earth's atmosphere, except.....

• ammonia

• hydrogen gas

• hydrocarbons

• oxygen

• water vapor