Answer:
20 trillion
Explanation: I googled it and life is impoartant?
Possibly a Great White or a DaggerNose
Answer:
son las sustancias quimicas que contienen los alimentos que consumimos de los cuales obtenemos energia necesaria para realizar todo tipo de funcion vital y tener una vida sana
Answer: It's not blocked
https://www.khanacademy.org/science/high-school-biology/hs-human-body-systems/hs-body-structure-and-homeostasis/a/tissues-organs-organ-systems