Biology, 27.10.2020 14:00 s945924

5 characteristic of porifera and coelenterata

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Answer from: phsycotic121

Porifera:

They are organisms that contain numerous pores or holes in the body whilse

Coelenterata:

are organisms contain a body cavity that are usually referred to as coelenteron, which is composed of a single opening.

Answer from: xxkeyxx51

Characteristics of Porifera:Porifera are non-motile animals attached to some solid support.There are holes or pores called ostia, all over the body. These holes lead to a canal system that helps in circulating water throughout the body to bring in food and oxygen. Water flows through the bot cavity called spongocoel which is lined by choanocytes. The whole system is called canal system.They are diploblastic, sedentary, aquatic animals.These animals are covered with a hard outside layer or skeleton.The body design involves very minimal differentiation and division into tissues.Characteristics of Coelenterata:These are animals living in water.There is a body cavity. They are diploblastic animals having gastrovascular cavity.The body is made up of two layers of cells: one makes up cells on the outside of the body i.e., ectoderm, and the other makes the inner lining of the body i.e., endoderm. The body consists of cnidoblast cell that forms stinging apparatus called nematocyst which is the organ of offense and defense.Some of these species live in colonies, while others have a solitary like-span.

Answer from: Quest

Is there any pictures in the question? i can’t answer the question without seeing the model.

Answer from: Quest

answer:

the water molecules are transferred from the roots to the stem or top parts of the tall tree because of important properties of water which are adhesion, cohesion and capillary action. cohesion is the property of water molecules keeps water molecules in a combined state by sharing of bonds between them at the atomic level. adhesion allows the interaction of water molecules with other substances or substrate. adhesion will cause the attachment of water molecules to the wall of the vessel (xylem) of the plant. capillary action occurs when the adhesive force to the vessel wall is stronger than the cohesive force between water molecules. capillary action mimics the transfer of water from a tube or pipe. in this way water utilizes its property to transfer water from down to top level of the plant.

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5 characteristic of porifera and coelenterata...