Answer:
sunlight
Explanation:
plants need sunlight to survive and therefore when it is indoit's it doesn't receive sunlight
Answer:
In anatomy, the notochord is a flexible rod formed of a material similar to cartilage. If a species has a notochord at any stage of its life cycle, it is, by definition, a chordate. The notochord lies along the anteroposterior ("front to back") axis, is usually closer to the dorsal than the ventral surface of the animal, and is composed of cells derived from the mesoderm.
When the walls of the arteries thickens and hardens- occurs typically at old age.
I think it’s D............