It must be successful at reproducing and surviving
Not always. It just depends on if the traits stay the same
it allows for nutrients to come into the cell using passive tranport aka moving anything on a gradient without the use of energy (ATP).
If the ratio is 9:2 that means that 45 would by ñ times 9. At the same time, ñ must also fit the ratio. Using this knowledge, you can divide 45 by 9, giving you 5, then multiply it by 2. This means that the child is 10 years old.
Parasympathetic nerves govern involuntary actions such as pupil dilation, peristalsis, gland secretions, etc.
