Animalscaretips
- What is Porifera short answer?
- What is Porifera and its characteristics?
- What is Porifera also known as?
- What is Porifera Wikipedia?
- What is Porifera in biology class 9?
- What are the four classes of phylum Porifera?
- What animals belong to phylum Porifera?
- What is the habitat of Porifera?
- What are Choanocytes or collar cells what is their function?
- Does Porifera have true tissue?
- Why are porifera called sponges?
- What is sponge made of?
- What is the function of the Oscula?
What is Porifera short answer?
: a phylum of primitive invertebrate animals comprising the sponges and having a cellular grade of construction without true tissue or organ formation but with the body permeated by canals and chambers through which a current of water flows and passes in its course through one or more cavities lined with choanocytes.
What is Porifera and its characteristics?
Characteristic Features of Phylum Porifera
They are generally marine aquatic organisms, with a few freshwater species. Their bodies are asymmetrical. Body shape can be cylindrical, vase-like, rounded or sac-like. They are diploblastic animals with two layers, the outer dermal layer and the inner gastral layer.
What is Porifera also known as?
Phylum Porifera (“pori” = pores, “fera” = bearers) are popularly known as sponges. Sponge larvae are able to swim; however, adults are non-motile and spend their life attached to a substratum through a holdfast. The majority of sponges are marine, living in seas and oceans.
What is Porifera Wikipedia?
Sponges, the members of the phylum Porifera (/pəˈrɪfərə/; meaning 'pore bearer'), are a basal animal clade as a sister of the Diploblasts. ... Sponges have unspecialized cells that can transform into other types and that often migrate between the main cell layers and the mesohyl in the process.
What is Porifera in biology class 9?
1)These are non-motile animals attached to some solid support. They are called as sponges. 2)There are holes or pores all over body. 3)The canal system help in circulating water throughout the body to bring in food and oxygen.
What are the four classes of phylum Porifera?
The phylum Porifera has four classes, namely the Calcarea, Demospongiae, Hexactinellida and Homoscleromorpha. Exclusively marine, calcareous sponges predominantly inhabit shallow tropical waters.
What animals belong to phylum Porifera?
Sponges (Phylum Porifera) are a group of simple aquatic invertebrates that include three groups - Glass sponges, Demosponges and Calcareous sponges.
What is the habitat of Porifera?
The phylum Porifera comprises the sponges. Sponges are simple invertebrate animals that live in aquatic habitats. Although the majority of sponges are marine, some species live in freshwater lakes and streams. They are found in shallow ocean environments to depths as great as five kilometers (km).
What are Choanocytes or collar cells what is their function?
These collar cells or choanocytes form a type of cell layer called choanoderm inside the sponges. In asconoid sponges, they are seen as the dotting surface of the spongocoel. They form radial canals in syconoid sponges. Their function is to filter particles out of the water which is entering into the spongocoel.
Does Porifera have true tissue?
They are multicellular but do not have tissues or organs. The name porifera means 'pore bearer' in Latin. The surface of the sponge's body is covered by a skin, one cell thick.
Why are porifera called sponges?
The name porifera means 'pore bearer' in Latin (a pore is a tiny hole). A sponge's body is covered by a skin, one cell thick. This skin has lots of small pores and a few large openings.
What is sponge made of?
Synthetic sponges are made of three basic ingredients: cellulose derived from wood pulp, sodium sulphate, and hemp fiber. Other materials needed are chemical softeners, which break the cellulose down into the proper consistency, bleach, and dye.
What is the function of the Oscula?
The osculum (plural "oscula") is an excretory structure in the living sponge, a large opening to the outside through which the current of water exits after passing through the spongocoel. Wastes diffuse into the water and the water is pumped through the osculum carrying away with it the sponge's wastes.
