Sponges are a type of aquatic animal whose body is covered in tiny pores called ostia. The ostia allow water, oxygen, and other nutrients to flow into the sponge's body, and for waste products like ammonia and carbon dioxide to exit their body. The respiratory system of a sponge is based on the process of diffusion.
Answer:
Spongy bone
Explanation:
The bone density is reduced and allows the end of bones to compress when stress is applied
The amount of energy from the sun that the organism absorbs.
The substances in plants and eggs that makes it tightly bound to iron and to be able to limits its own absorption in the body is oxalic acid or phytates. An oxalic acid has the physical appearance of a colorless crystalline solid and it is considered to be an organic compound while the phytates has the ability to bind in dietary materials.
