Answer AND Explanation:
Crossing over is a type of recombination that occurs during prophase I of meiosis and results in the exchange of genetic material between homologous chromosomes. In a population where crossing over occurs frequently, there would be increased gene pool or genetic drift and variations compared to a population where individual chromosomes do not cross over. The offspring will be genetically unique because of crossing over and independent assortment.
Because of the salt and the natural things living in the ocean as well as the bacteria
2. <span>The lungs take in air, and the blood carries oxygen to the body's cells. is correct.
1. isn't
When you drink a lot of water the water flows through your kidneys and removes waste products If your blood did that then the waste products would be getting into your blood...</span>
Looks like a stir rod to me