About 71% is covered with water
Answer:
oxygen
Explanation:
Living organisms often contain amounts of several elements, but the most abundant ones are oxygen, carbon, hydrogen, nitrogen, calcium and phosphorus. But Oxygen is the most abundant element contained within living organisms, composing about 65% of the human body.
Yes, those that use external fertilization are more likely to produce large numbers of sperm and eggs.
I’m not sure about your experiment can you explain?
