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Introduction to Phylum 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.
- Where are porifera and coelenterates live?
- What are the similarities and differences between animals in the phylum porifera and Coelenterata?
- What are the characteristics of coelenterates?
- Which of the coelenterates is found?
- What are the examples of porifera and coelenterates?
- What is the excretory system of porifera and coelenterates?
- What is common between phylum Porifera and phylum Cnidaria?
- How do Coelenterates and platyhelminthes differ from class 9?
- How does phylum Porifera differ from Cnidaria?
- What is the basis of classification of Coelenterata?
- Is Coelenterata and Cnidaria same?
- What is habit and habitat of Hydra?
- What are the two basic forms present in Coelenterata?
- Why is Coelenterata also called Cnidaria?
Where are porifera and coelenterates live?
Porifera: They are nonmotile, mostly marine and found attached to rocks. Coelenterata: They are either live in colonies (Corals) or have a solitary life span (Hydra).
What are the similarities and differences between animals in the phylum porifera and Coelenterata?
Summary – Porifera vs Coelenterata
Both phyla consist of animals living in fresh and marine water. The main difference between porifera and coelenterata is that porifera members possess many pores in their bodies while coelenterate members possess only one opening in the body.
What are the characteristics of coelenterates?
Characteristics. All coelenterates are aquatic, mostly marine. The bodyform is radially symmetrical, diploblastic and does not have a coelom. The body has a single opening, the hypostome, surrounded by sensory tentacles equipped with either nematocysts or colloblasts to capture mostly planktonic prey.
Which of the coelenterates is found?
Body organisation of organisms belonging to the Coelenterates are multicellular with tissue grade. They have an inner layer of endoderm called the gastrodermis, and outer ectoderm called the epidermis. Their body wall is diploblastic. Coelenterates are acoelomate animals.
What are the examples of porifera and coelenterates?
Sycon, Spongilla, and Euspongia are some of the examples of Poriferans. Organisms like Physalia, Adamsia, Pennatula, Gorgonia, and Meandrina are examples of coelenterates. Note: -Coelenterates or cnidarians are found in two body forms – Polyp and Medusa.
What is the excretory system of porifera and coelenterates?
Explanation: both porifera and coelenterates remove their waste material through diffusion as they don't have a distinct excretory system!!
What is common between phylum Porifera and phylum Cnidaria?
Porifera and Cnidaria are organisms which share similar characteristics with one another. -They are both multicellular, they consist of many cells working together. They are both eukaryotic, they have DNA in the form of chromosomes contained within a distinct nucleus.
How do Coelenterates and platyhelminthes differ from class 9?
The key difference between Coelenterata and Platyhelminthes is based on the germ layers of the organism. Coelenterates are diploblastic invertebrates whereas Platyhelminthes are triploblastic invertebrates.
How does phylum Porifera differ from Cnidaria?
Cnidaria and porifera are two different phyla. Cnidarians have Cnidocytes but not the poriferans. Cnidarians have well-organized organ systems but not the poriferans; on the other hand, poriferans have an efficient tunnel system made up of pores but not the cnidarians.
What is the basis of classification of Coelenterata?
The phylum coelenterate is divided into three classes on the basis of development of zooids: Class1: Hydrozoa. Class2: Scyphozoan or Scyphomedusae. Class3: Anthozoa or Actinozoa.
Is Coelenterata and Cnidaria same?
cnidarian, also called coelenterate, any member of the phylum Cnidaria (Coelenterata), a group made up of more than 9,000 living species. Mostly marine animals, the cnidarians include the corals, hydras, jellyfish, Portuguese men-of-war, sea anemones, sea pens, sea whips, and sea fans.
What is habit and habitat of Hydra?
Habitat. Hydras occur in freshwater, either in flowing or standing waters. They tolerate a wide range of conditions from depths up to 350 metres in lakes, or in shallow, fast-flowing streams. They attach themselves to solid surfaces such as stones, twigs, or vegetation.
What are the two basic forms present in Coelenterata?
The coelenterates characteristically have two basically similar types of individuals differing in structural details, called the polyp and the medusa. The polyp is sessile.
Why is Coelenterata also called Cnidaria?
Phylum Coelenterata is also known as Cnidaria due to the presence of cnidoblasts or cnidocytes on the tentacles and body surface. They contain stinging capsules called nematocysts.
