A strand of mRNA is the compliment to the coding strand of DNA. It kind of has the opposite information from DNA (if a DNA strand is TCCGATC the compliment mRNA would be AGGCTAG). This way, it is able to retain the information when travelling to the ribosome for translation (aka, turning the DNA information in proteins)
Things going from low concentration to high concentration with ATP. An example would be the sodium potassium pump
Mitochondria! That is why it is called the powerhouse of the cell!
Natural selection got rid of the light colored moths and helped the darker moths survive and become more abundant.
