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.
DNA carries instructions for making the proteins a cell needs.DNA molecules are found in chromosomes.Genes are segments of DNA that contain instructions that code for proteins.
hoped this helped
Answer:
c) matter in an ecosystem flows in one direction and is never reused.
Explanation:
A is true
the genetic constitution of an individual organism.
Yo no lo see por que no quedó lol (^з^)-☆
