Giraffes have long necks, which they use to browse the leaves of trees. They also have slightly elongated forelegs, about 10% longer than their hind legs. Like nearly all mammals, a giraffe has seven neck vertebrae, which are extremely. elongated.
A crustacean is an organism that belongs to the Kingdom Animalia, Phylum Arthropoda, and in the class Crustacea. Examples of the organisms belonging to this class are lobsters, woodlice, krill, shrimp, barnacles, crayfish, and crabs.
Definition: Plankton is the term that generally refers to the floaters, the organisms in the ocean that drift with the currents. This includes zooplankton ( animal plankton ), phytoplankton (plankton that are capable of photosynthesis), and bacteria.