C. Combine with hemoglobin to form oxyhemoglobin
Answer: Option B
Explanation:
The Eukaryotes, Bacteria and Archaea were firstly thought to be belonging to same kingdom as their characters were very much similar.
Until their DNA sequence were used as a basis of their distinction they were put into similar criteria. Due to advanced research their DNA sequence were analyzed and then it was found that the three organism are different.
So, the correct answer is option B
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
The answer is D. Light bends as it passes from one medium to another
Answer:
Peptic ulcer disease occurs when open sores, or ulcers, form in the stomach or first part of the small intestine. Many cases of peptic ulcer disease develop because a bacterial infection eats away the protective lining of the digestive system. People who frequently take pain relievers are more likely to develop ulcers.
Explanation:
