Vomiting is a common symptom of the stomach flu - it starts a few hours after you're exposed to the virus so there isn't a certain amount of times you will vomit but drinking plenty of fresh, clean water will help you keep hydrated! :)
Because there are millions in our body
Answer:
Through simple diffusion, down the concentration gradient.
Explanation:
The phospholipids of the membrane are amphipathic with hydrophillic heads and hydrophobic tails. Other polar molecules cannot go through this hydrophobic interior. Since small uncharged lipids are non polar and hydrohobic, they are able to go through the membrane without the help of transport proteins. Therefore, the last two options can be ruled out because facilitated diffusion includes the use of a protein. Diffusion involves molecules moving down the concentration gradient so the second option can be ruled out.
Answer:
The third one
Explanation:
If all is option then all of them
