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 ;)
This is only one part of the answer, but its important: high-altitude O2 absorbs much energy from the sun (including radioactivity), which forms the ozone layer. this process protects delicate molecules important to life - most notably dna
It’s c because one color can get to two different animals
Waxing crescent
First quarter
Waxing gibbous
Full moon
Waning crescent
Answer:
Sadness has sad feeling. for example, if a friend dies, you will cry. that is what sadness is.
Explanation:
