Answer:over time as our evidence improves. The more experiments we do, and the more data we collect, the better our scientific ideas become.
Explanation:
Answer:
Facilitated diffusion
Explanation:
Facilitated diffusion is the transport of hydrophilic molecules that can not freely cross the membrane. Channel protein and many carrier proteins are in charge of this transport. When uncharged molecules cross the membrane, they do it according to their concentration gradients, going from the more concentrated side to the lower concentrated one. When ions need to cross the membrane, the process depends on an electrochemical gradient.
Facilitated diffusion is a passive transport process because they only depend on electrochemical gradients, so they do not need any energy to occur.
Answer:
In some primordial soup of molecules, a self-replicating RNA formed.
Explanation:
?
Answer:
Shows the flow of food and energy
