1. Explain, which organism provides most of the Earth’s oxygen? (One paragraph)

2. The endosymbiosis theory states that mitochondria and chloroplasts arose from ancient bacteria that were ingested by ancestral eukaryotic cells. (One paragraph)

a. Describe two pieces of evidence that are consistent with this theory.

3. According to part 1 file (One paragraph)

a. Describe and identify which molecules are inputs of photosynthesis and

b. Which molecules are outputs of photosynthesis.

4. Testing the effect of altering at least two of these variables on the rate of photosynthesis (Check part 1 file) (One paragraph)

a. Design one hypothesis using the initial carbon dioxide variable