Answer:
It maintains a constant internal temperature.
Explanation:
Our body tries its hardest to maintain a constant internal temperature. This is because if we get to warm or cold it is unhealthy. If your body senses that it is getting to warm or cold it will try to correct itself.
4 elements are classified in group 4 like titanium, zirconium, hafnium and ruthorfordium
The answer is A (The ability to react with oxygen)
