They are biogeochemical cycles
C . mRNA because i know it’s right
Because they don't need them. Cell walls, which are found in plant cells, maintain cell shape, almost as if each cell has its own exoskeleton. This rigidity allows plants to stand upright without the need for bones .
Answer:
Gà có trước vì trong trứng có protein đặc biệt chỉ gà mới đẻ được. Gà thì đột biến mà thành