Answer:
A) Channel Protein
Explanation:
Channel proteins span the membrane and make hydrophilic tunnels across it, allowing their target molecules to pass through by diffusion.
Channels are very selective and will accept only one type of molecule to transport
A channel protein, a type of transport protein, acts like a pore in the membrane that lets water molecules or small ions through quickly.
Answer:
B. found in every living thing
Explanation:
Answer: In Stage 4 of the Demographic Transition Model birth rates and death rates are both low, stabilizing total population growth. The decline in both birth and death rates of most Stage 4 countries have been attributed to strong economies, highly educated citizens, ample healthcare systems, the migration of people from rural communities to cities (Bulgaria)
Explanation: i dont know if it's correct to them
Personal responsibility does play a very important role in peoples food choice.
However, having said that. Their personal choice is not the only important factor. The thing is that group or peer pressure is an important way how we might end up eating something we never wanted to eat in the first place.
