B is the answer
That is correct
ER, golgi, or mitochondria ♀️
Yes this is true sort of like when light rays pass through water particles in the atmosphere and create a rainbow :)
Survival of the fittest is talking about when you have traits that will help you, you are more likely to live rather than not having those traits. For example, a bird that swims a lot has webbed feet so it has a better chance of surviving then a bird who does not have webbed feet