The answer is concentration gradient. Have a good day.
When boys go through puberty their voices change and they start to grow hair on different area of their body such as their chest, face and pubic area. Also they will start to get acne
Fungi and bacteria are primary decomposers whereas plants and trees are producers and animals are consumers
The last one, the planets formed at the same distance from the sun.
photosynthesis: needs light to happen
Cellular respiration: waste products are carbon dioxide and water.
