Answer:
Carbon
Explanation:
The element carbon accounts for 23% (about 20%) of a human's total body mass.
Answer:
Explanation:
New varieties began to harness the power of the sun through a biochemical process known as photosynthesis—a move that would ultimately lead to simple plants and which opened the planet up to animal life. Some three billion years ago, the Earth's atmosphere was virtually devoid of oxygen.
Answer:
Can of soup and pop Tarts.
Explanation:
Can of soup will provide 1 mole of sodium whereas pop Tart provides potassium in the least mass because the concentration of sodium and potassium in can of soup is higher than other food items. The can of soup has 300 mg of sodium and pop Tart has 0.5 g of potassium while on the other hand, honey nut, frosted flakes, Oreos and pop Tarts has 0.14 g, 0.12 g, 0.3 g, and 0.35 g of potassium respectively and can of soup, honey nut, frosted flakes and Oreos has 190 mg, 150 mg, 80 mg, and 180 mg of potassium respectively which is lower than pop Tart so we can say that less amount of pop tart provides more potassium. 9579 of soup and 7505 of pop Tart are the masses required for I mole sodium and potassium.
Animal cells each have a centrosome and lysosomes, whereas plant cells do not. Plant cells have a cell wall, chloroplasts and other specialized plastids, and a large central vacuole, whereas animal cells do not.
The hydrosphere is all water on earth, the lithosphere is the crust and upper mantle, the biosphere is all life on earth, and the atmosphere is all the gases surrounding the earth.