Origin of Life

Multiple Choice

Anaerobic means

• with oxygen

• without oxygen

Multiple Choice

Aerobic means

• with oxygen

• without oxygen

Multiple Choice

The cells that came first were simple _____ cells.

• prokaryotic

• eukaryotic

• muticellular

Multiple Choice

Over time these simple cells evolved to use oxygen then became more complex ________ cells.

• prokaryotic

• eukaryotic

• unicellular