How can you tell what eras were previously under water? what is your evidence?

Acladogram is a branching diagram that represents suggested evolutionary relationships among organisms based on the presence of unique traits. a scientist discovers a new organism that lacks limbs and does not have a true backbone. the organism lays eggs to produce offspring and has a cartilage-like rod known as a notochord running along its dorsal surface. on the cladogram below, select the species to which the newly discovered organism is most closely related.

How and why organisms are hierarchically classifies

Involving transcription and translaton. explain the causes and effects of damage to the genetic code.