The usual problem that would frustrate attempting to organize entire world for the study is we do not know how many separate species of life forms that usually would exist on this planet. Hope this is the correct answer and this would help.
I think it's so your lungs can expand to help you breathe properly ? You may have to wait for some more answers to come through
Is there supposed to be an image?
Answer:
<u><em>What Is the Difference Between an Optometrist and an Ophthalmologist?</em></u>
1. Optometrists- Optometrists examine, diagnose, treat, and manage diseases and disorders of the eye. ...
2. Ophthalmologists- Ophthalmologists are medical doctors (M.D) who diagnose and treat all eye diseases, perform eye surgery, and prescribe eyeglasses and contact lenses.
This is possible by having different stem cells for different types of cells which then have different genes activated to make cells different
