Answer: A sponge, screen door, your wall, window & door of your house.
It is faste reproduction, therefor its option D
1500 =100
900 =x
900 x 100 = 90000/1500= 60
60% of kcals come from carbs
Answer:
The stomach has a pH between 1.5 and 3.5 generally and this is due to the cells in the stomach releasing hydrochloric acid.
Explanation:
So as cells in the intestines gradually release more and more sodium bicarbonate, the pH raises from around 1 to around 7. Answer 2: The stomach usually has a pH of 2 or 3
