Actions that are reactions to a stimulus are called

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.

Drag each tile to the correct box. arrange the layers and faults from oldest to youngest.

Which of these is not a nucleotide base found in dna?