A structural adaptation for a black tip reef shark is mostly or all of the external and internal traits that other organisms may not have. For the black tip reef shark, it has small, but pointy teeth to grab hold of slippery small prey, fins that help it control its movment, five gill slits for better respiration, a smooth steamlined body that helps it move perfectly through the water with as little effort as possible and a cartilage skeleton (no bones) for a strong and flexible body. A fish on the other hand does not have a cartilage skeleton, a normal one of bone. Scales all over its body to help protect it from other smaller predators, a single gill slit which is covered by a boney plate for protection, streamlined bodies for better movment through the water and in some cases even beaks to help break shellfish or to provide an increasing amount of damage when attacking.
In plants, there is the sea lettuce, this sea plant can grow to huge lengths to cover more surface area as well as reaching through narrow gaps to increase surface area and strength. With neptunes necklace, it has deep roots to strengthen itself as well as air pockets to help it rise higher than other sea plants for more light, other plants in Corel reefs, have spikes on the outside to prick nearby predators. Some plants can even adapt to its own enviorment by changing its form. Some can even change its colour to adapt to its environment.
In plants, there is the sea lettuce, this sea plant can grow to huge lengths to cover more surface area as well as reaching through narrow gaps to increase surface area and strength. With neptunes necklace, it has deep roots to strengthen itself as well as air pockets to help it rise higher than other sea plants for more light, other plants in Corel reefs, have spikes on the outside to prick nearby predators. Some plants can even adapt to its own enviorment by changing its form. Some can even change its colour to adapt to its environment.