You would need a direction to determine the velocity because velocity is speed with a direction. 40km/h is just speed.
It would be the kidneys, small and large intestine
1) closed circulation
2) The spleen can easily be damaged if someone suffers a sever injury to the stomach. When the spleen is damaged, it can cause pain in the abdomen, dizziness, and pain in the left shoulder.
The answer u r looking for is-
1. all bacteria - glycolytic enzymes and membrane proteins
2. gram-positive bacteria - peptidoglycan
3. gram-negative bacteria -
4. viruses - envelope proteins
5. all bacteria and viruses - nucleic acids
Hope I’ve helped ;)