Oxygen entered the Earth's atmosphere after the appearance of the Great Oxidation Event (Great Oxygenation Event). The Great Oxidation is the first mass extinction on Earth.
The Great Oxidation lasted 2.4 to 2.0 billion years ago.
Oxygen appeared on Earth thanks to cyanobacteria using photosynthesis.
Answer:
Yes the three you chose were correct
Explanation:
Answer:Glycolysis: (p. 94; Fig. 6.7A-C)
Refers to:
Occurs:
Energy investment phase: Steps 1 – 4 C-C-C-C-C-C
2 ATP
How many ATP's required (used)?
Results in 2 molecules of 3 phosphoglyceraldehyde (G3P) C-C-C C-C-C
Note: Step 5 is an isomeration step between G3P & Dihydixyacetone phosphate
Energy yielding phase: Steps 6 – 10 (G3P) C-C-C C-C-C
Explanation:
Answer:
No atoms are created or destroyed in chemical reactions.
Explanation:
Matter cannot be created or destroyed. When two reactants contact each other, a chemical reaction occurs which breaks the bonds between atoms and rearranges them, forming new bonds which transform them into the product. The same amount of atoms exists before and after the reaction.
Answer:
Fox, whale, lion and eagle.
Explanation:
They only eat meat
