Vestigial structures are parts of an animal's body that serve no function, but did in earlier evolutionary stages. Two examples of this are the human appendix and the snake pelvic bone.
B. Most of the breaking down and absorbing of food happens in the small intestine.
Answer: Oxygen
Explanation: Oxygen is the gaseous by product of photosynthesis.
Carbon dioxide + water + energy from light produces glucose and oxygen.
Sunlight energy.
6CO2 + 6H2O ------> C6H12O6 + 6O2
the excess oxygen they produced during photosynthesis is contributed directly to the oxygenation of the Earth.
Answer:
It's a good conclusion, you gave all the data needed to understand your expirement and it's results, as well as explaining why you thought that you reached the result you did. You have a few grammar mistakes (Missing commas, un-needed commas, and random capitalizations), but other than that, good job!
-Jack
A benefit of using nuclear energy could be the abundance of uranium in nature. The human risk about mining that is the most important to consider are the health hazards that are associated with uranium mining.