Refraction is do a fraction again and reflection is do a flection again
Molecules always tend to move downhill i.e, from higher concentration to lower concentration, but if a molecule has to move uphill i.e towards higher concentration then energy has to be spent.
Active transport requires energy in the form of ATP i.e. ATP must break down for the movement of molecule against its concentration gradient. (ans is A)
Using a punnet square we can compare the parents' genes. I will use the letter s to represent the shell color.
S s
s Ss ss
s Ss ss
We can now see that there is a fifty fifty chance the offspring will be either color.
Male Birds are usually the colorful birds to attract mates while females are camouflaged to protect their eggs/hatchlings. Ground birds need to be camouflaged because they are easy prey and they have their nests on the ground.