False
Not always, some proteins are used in a variety. <span>Protein channels are needed to transport substances because it accelerates the transport process. Very few substances enter or leave cells without being attached to a transport protein. Different types of substances require different types of proteins to transport them. Protein channels transport water or ions downwards and ATP-powered pumps transport molecules or ions upwards. ATP generates energy to transport the molecules upwards. </span>
Answer:
an individual having two different alleles for a specific trait.
Explanation:
They will run out. Because nonrenewable means it can't be renewed until like millions of year or so. Hope this helps and You're Welcome! :3
