Answer:
<h2>Biological servises </h2><h2>Hope it helps ;)</h2>
Respiratory system= breathing system
To keep our Respiratory system healthy we should:
1- never breathe in front of polluted areas
2- never pollute our areas
3- try to make our environment normal
Answer: cells use carbon dioxide and energy from the Sun to make sugar molecules and oxygen
Explanation:
i hope this help
Answer: Nutrition and respiration
Explanation: animals can't grow if they don't eat anything which can be absorbed to help with production of cells and they can't live if they don't breathe.