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: Mrs.Connor
Explanation:I just want to go with is the flow.
The population must be infinitely large!
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According to some research it is estimated that about 20% of americans of the age of 12 are infected with the human papilloma virus.
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D) A & B
it protects the seed against any damage or harmful weather conditions and also helps in dispersal of the seed through different means.
