Hi there,
Speed of sound in water is approximately 1500 meters per second (the exact speed depends on the depth of water and its density) and the speed of sound in air is approximately 340 meters per second. So sound is almost 4.4 times faster in water than in air. I hope this helped :)
Probably not. some bacteria produce enzymes that break down hemoglobins in RBC.
The answer is C. heliobactir Pylori
Meiosis - the cells divide to produce 4 haploid cells