Evolution Flashcards
What is gradualism? Who is associated with this?
A gradual change in a species over millions of years. Charles Darwin.
Why is polymer formation?
Chains of molecules
What is the oceans nickname? What does it mean?
“Organic soup”» potential for life
What were the first cells? What did they give off?
Heterotrophs. CO2. Anaerobic.
What happened when the food ran out?
The heterotrophs started taking in green things (chloroplasts) and sunlight to make their own food.
What were the second cells? What do they release? What did they create?
Autotrophs. Releases O2 and it created the ozone layer.
What is the formula for photosynthesis?
Co2+ H2O+ sun+ chloroplasts+» H2O+ O2+ glucose
What does the ozone layer do? What creates holes in this layer?
Keeps uv rays from the sun out. Aerosols.
Where does most of our oxygen come from?
80% from streams.
