Answer:
I may be wrong but try A.
Due to the cones in your eyes(OR else they're called the photo receptors together with Rods)
Twelve pairs of ribs are attach to the second spinal region which is called the thoracic. Thoracic spine is kyphotic. Kyphotic means excessive curvature of the spine as it occurs in thoracic and also sacral regions. Thoracic spine is located in the chest area.The ribs are attach to the thoracic spine and protect the vital organs that is located thoracic spine region.
This can be answered by asking why do we all have different skin colours: Melanin pigmentation. Years of evolution made different people around the worrld different skin colours as an protective mechanism against high levels of UVR exposure, the closer people were to the eqautor, the hotter it would be, so many people living in tropical and desert like climates had darker skin. To answer about folate though, people are darker skin tones living near the equator had dark skin to prevent folate deficiency. So yes everyone has folate, but some people are darker skin to better protect it and their skin.
Hope this helps, HAVE A BLESSED AND WONDERFUL DAY! As well as a great Superbowl Weekend! :-)
- Cutiepatutie ☺❀❤
Oral phase, Esophageal phase, and Pharyngeal phase.
