Answer:
They are Uracil, Thymine, Guanine, Adenine, and Cytosine.
Explanation:
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:
Kristin's answer is the best.
Explanation:
It is the only correct answer.
Biotic and abiotic factors both influence each other. The abiotic factors will determine what kinds of biotic factors will present