Geologic time scale

How old is the earth?

• 2.5 million years

• 4.6 billion years

• 1.5 billion years

• 4.6 million years

method of determining the age based on measuring radioactive elements

• radiometric dating

• relative dating

• teenage dating

• no dating

Which of gase does NOT comprise most of our Earth’s atmosphere today?

• Oxygen

• Nitrogen

• Hydrogen

• Carbon Dioxide

Built a simulation of early Earth's gases and electricity

• oparin

• Darwin

• Mendel

• miller/urey

A preserved remnant or impression of an organism that lived in the past.

• Hox Genes

• Common Ancestor

• Fossil

• Stasis

____________ & _________________ are organelles that definitely arose from endosymbiosis.

• Nucleus and cell membrane

• Chloroplast and mitochondria

• Mitochondria and nucleus

• Cell wall and chloroplast

What are evidence to support endosymbiotic theory?

• Mitochondria is found outside the cells

• Mitochondria and chloroplast can divide independently

• Mitochondria and chloroplast have their own cell membrane

• Mitochondria and chloroplast have their own genetic material

Theory that says eukaryotic cells formed from symbiosis among several different prokaryotes.

• Natural Selection
• Biogenesis Theory
• Evolutionary Theory
• Endosymbiotic Theory

The Endosymbiotic Theory explains

• the origin of prokaryotes

• how bacteria lives

• the origin of eukaryotes

• how species develop

Based upon the conditions of the early Earth, which forms of live most likely appeared first?

• Prokaryotic and aerobic
• Prokaryotic and anaerobic 
• Eukaryotic and aerobic
• Eukaryotic and anaerobic