Answer:
Chemical substances in food that have specific functions in your body are called Nutrients. Examples: proteins, fats, carbohydrates, vitamins, and minerals
Explanation:
These chemical substances keep our body healthy.
These chemical substances prevent the premature aging.
They help our body to fight against diseases.
They build the new tissues and cells for growth.
And in short, they help in the growth, development of our body.
Answer:
A. cell walls
Explanation:
Plants have cell walls but animals dont.
If you soak this egg shell in vinegar (which is about 4% acetic acid), you start a chemical reaction that dissolves the calcium carbonate shell. The acetic acid reacts with the calcium carbonate in the egg shell and releases carbon dioxide gas that you see as bubbles on the shell.
Answer:
2m head start or else you done for
Explanation:
you cant even out run a bear they run at 35mph the fastest human is 25
Answer:
0.22 km/h
Explanation:
72 hours in 3 days
16/72 = 0.222222222
round to 0.22 km/h
For future reference, Distance/Time= Speed
