Answer:
The cornea is the only part of a human body that has no blood supply; it gets oxygen directly through the air.
Explanation:
A true all organ systems work togther
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 ;)
Inside the seed there are is an embryo the baby plan and cotyledons. When the seed begins to grow, one part of the embryo becomes the plant while the other part becomes the root of the plant.
