Why do slippery fluids such as oil reduce sliding friction?

2. if scientists identify an animal with bilateral symmetry and no segmentation, which phylum can it definitely not belong to? a. roundworms b. annelids c. mollusks d. flatworms

When is your respiration rate likely to change? a. when your intestines are digesting b. when your cells have too much glucose c. when your cells need more oxygen d. when your liver is working after a meal

Aboy jumps into a cold swimming pool and his body tempature goes down hus muscles ,blood vessels