Answer:
Blood is carried away from the heart by arteries. Blood that is rich in oxygen. Blood that is low in oxygen is returned to the heart by veins. there is more pressure in arteries than in veins.
Answer: A pictograph is a symbol for a word or phrase.
i hope this helps you :D
Answer:
by washing ourselves with soap
Answer:
En la combustión completa se produce: vapor de agua, dióxido de carbono y energía calórica. En cambio, si la combustión es incompleta, se produce monóxido de carbono.
Isotonic solution. Hypotonic is less salt concentration and hypertonic is more
