3 cups of sperm, and 4 cups of water in order to make the ratio 1:3.
About 29 percent of the solar energy that arrives at the top of the atmosphere is reflected back to space by clouds, atmospheric particles, or bright ground surfaces like sea ice and snow. This energy plays no role in Earth's climate system
No; while a cell can use passive transport to bring in water, it must use energy to bring in larger particles. There also may not be enough of a difference in concentration of particles for diffusion to occur.
Answer:
pathogens and bodily fluids.
Explanation: