Adaptations are what organisms do in order for them to survive and adapt to the environments that Mother Nature is presenting them.
1. Crocodiles - have tough and scaled skin that allows them to camouflage and catch prey in the water
2. Frogs - have developed bodily fluids that secrete poison to prevent predators from attacking them
3. Bats - have developed their echolocation to help them in hunting for food at night time.
4. Coelachants - have maintained their extra fins for sensory motor in the water
5. Lampreys - have maintained their tooth-funnel like mouths in order to feed on their hosts.
Answer:
periosteum
Explanation:
The long bone is entirely covered by the periosteum except where the articular cartilage coats the epiphysis. The endosteum covers the surface of the medullary cavity, the trabeculae of the spongy bone tissue and covers the wall of the various canals that pass through the compact bone.
Wait can you explain in english pls
