When an ion or a molecule passes through a membrane without something facilitating, or encouraging that passage, such as a protein does. What drives it is the force of the diffusion itself instead.
Answer:
A.
Explanation:
in DNA, G matches with C and A matches with T. G cannot match with G, A cannot match with A, etc.
<em>An organism's genetic code is determined by the sequence of nucleotides of the DNA. </em>
What I mean is that it determines the nitrogen bases along a gene.
Cell wall and Chloroplast
Answer: Protiens help provide structural support for our metabolism, and they can act as enzymes, carriers, or hormones to help us. They provide growth and maintenence and also act as messengers for our brain. They bolster our immune system and also transport/store nutrients. Basically, they do a whole lot!
Explanation: