Answer:
Weather is what can change from day to day. Climate depends on the area you are in.
Explanation:
Each hemoglobin molecule is made up of four heme groups surrounding a globin group, forming a tetrahedral structure
This is all I know about this, let me know if you still have questions ;)
There are approx 100 billion
The answer would be d because testing needs to be efficient which all of them cover
