Cephalization describes the process by which organisms develop a distinct head. The head of a cephalized organism contains a concentrated group of nerves, or brain, that controls the rest of the organism, as well as specialized organs for consumption and perception, like mouths, eyes and ears. Cephalized organisms exhibit a distinct division between parts of the body; they have a front, back, top and bottom. These animals comprise the bulk of animals that are encountered on a daily basis.
sea star following organisms exhibits cephalization
Answer:
Many fossils are found only during certain periods in the geologic record. Scientists use these fossils to determine the relative ages of rock layers. The diagram shows relative ages of four fossils.
Hope that helps :)
Jayden, you didn’t put the diagram so we can’t help. 。゚(゚´Д`゚)゚。
The sequence of Nucleotides in a DNA molecule determine the protein that will be produced. Nucleotides are the basic structural unit of DNA.