What is the reason for saying that sponges are closely related to, and probably evolved from, several members of the Kingdom Protozoa?

Q: What are the germ layers? How many germ layers do sea sponges have? What phylum do sea sponges…

A: Germ layers are formed in the early embryonic stages of foetal development, they ultimately form…

Q: Vertical Tubes Class: Anthozoa Genus: Tubipora Common Name: Organ Pipe Coral Basal Plate Class:…

A: Introduction The largest coral system is the Great Barrier Reef has rich biodiversity including all…

Q: Why do sponges fit the definition of animals?

A: Animals are heterotrophic, are made up of cells, are devoid of cell wall in their cells

Q: What features make placozoans interesting from a phylogenetic perspective?

A: The phylum Placozoa is a basal form of free-living multicellular organism. It consists of a small…

Q: Specifically, what are the importance of ctenophores and cnidarians to humans? Why do they need to…

A: Ctenophores are jelly-like planktonic animals that move themselves by beating rows of complex cilia…

Q: In what ways are the flatworms more complex than the sponges and coelenterates?

A: Vertebrates and invertebrates are the 2 subdivisions into which all animals can be divided.  The key…

Q: Is reproduction in sponges sexual or asexual? What is the evolutionary advantage of the occurrence…

A: Budding, gemmation, or fragmentation (regeneration) are examples of asexual reproduction in sponges,…

Q: how did metazoans evolve from a choanocyte like ancestor

A: ‘Metazoans’ is a term used to refer to all animals under the division of Metazoa. They are…

Q: What are the features of sponges ( Phylum Porifera) and can they be classified as being apart of the…

A: Sponges are primitive multicellular animals. They are aquatic, generally marine but a few are found…

Q: Why are porriferans asymetrical? Cnidarians radial? The rest bilateral? (based on evolution)

A: It is required to provide the reason for assymetrical nature of poriferans, radial symmetry of…

Q: Differentiate the three different body plans in sponges: Characteristics Asconoid Syconoid Leuconoid…

A: Spongiology is a branch of zoology which deals with the study of sponges. Sponges are multicellular…

Q: Why are glass sponges distinguished from sponges with cellular bodies?

A: Sponges belong to the group Porifera of invertebrate animals. These organisms are characterized by…

Q: What material is found in the skeleton of all sponges?

A: Sponges are members of the phylum Porifera. Sponges are a multicellular organism that has bodies…

Q: What is unique about the madreporite of sea cucumbers (class Holothuroidea)?

A:

Q: How are the sponge’s porous body and canal system important for its maintenance functions? What…

A: INTRODUCTION:-  sponges are the living animals which comes under the…

Q: If you were asked to choose one of the following invertebrate as a pet (protozoa, sponges, and…

A: Protozoans *protozoans are single celled eukaryotes that lives free living or parasitic means that…

Q: What are the internal and external structures together with its function of Aplacophora,…

A: Phylum Mollusca is the most abundant phylum in the aquatic system having an estimated 23% of all…

Q: Which of the following characteristics are found within the pseudocoelomate phyla…

A: Pseudocoelomates generally consist of a fluid-filled body cavity. They lack a true coelom, i.e they…

Q: Are sponges monophyletic?

A: If a group or taxa shares or occupies the same ancestry or common ancestry that condition in…

Q: How many kinds of mesozoans exist and where would you search for them?

A: The soft-bodied animals having no firm internal skeleton for the attachment of muscles are called as…

Q: Why do we still refer to a giant clam as a metazoan?

A: Protozoans are the unicellular primitive organisms and are eukaryotes. Some of them are free-living…

Q: What factors support the placement of phoronids and brachiopods as sister taxa?

A: The tree phyla-Phoronida, Ectoprocta, and Brachiopoda-possess a crown of ciliated tentacles, called…

Q: Most sponge species are of leuconoid construction, is this an advantage or disadvantage?

A: Canal system is the characteristic feature of sponges. It helps in respiration, circulation,…

Q: How it is possible for sponges to survive without respiratory , digestive , excretory or circulatory…

A: The group of multicellular and heterotrophic organisms belonging to the kingdom Animalia is called…

Q: Do sponges have nervous, circulatory and excretory systems?

A: Though all members of Kingdom Animalia are multicellular, all of them do not exhibit the same…

Q: What is the name of the larva of coral and sea anemones ? What is the biological importance of that…

A: The larva is a developmental stage that is different from the adult stage. The organism has…

Q: What are the differences between the polyp forms of Hydra and Obelia and the Anthozoan polyps.…

A: These three organisms belong to the same phyla - Phylum Cnidaria. They are aquatic and species are…

Q: What characteristics distinguish Branchiopoda, Ostracoda, Copepoda, Thecostraca, and Malacostraca?

A: The phylum Arthropoda has ten sub-classes namely, a) Euchelicerata b) Chilopoda c) Diplopoda d)…

Q: What do the following subclasses have in common? Subclass: Elasmobranchii Subclass: Neopterygii

A: The idea and practice of characterizing, identifying, and categorizing living things are commonly…

Q: Why do some biologists think that the apicomplexans descended from dinoflagellates?

A: The finding of a nonphotosynthetic plastid in malaria and other apicomplexan pathogens has prompted…

Q: What is the advantage of having dimorphic nuclei as compared to the monomorphic nucleus of other…

A: Protozoa can be defined as the type of unicellular organism which uses cilia or flagella for…

Q: What are the criteria which delimit the phylum to its classes? What are the sponges which are…

A: Taxonomy is defined as the scientific study of naming, defining and classifying the groups of living…

Q: Why are all animals comprised of the clade metazoa?

A: Kingdom Animalia comprises the clade metazoan. Traditionally, the term metazoan has been used to…

Q: What is the following specimen? Our invertebrate zoology professor told us there is a bryozoan on…

A: It is a Bryozoa which is commonly called as Moss animal, they are also called as Ectoprocta and…

Q: Most sponge species are of leuconoid construction, is this type of sponge construction an advantage…

A: Sponges are the members of phylum Porifera. The Latin name of this phylum is derived from the high…

Q: What do fossil tetrapods tell us about the transition from water to land?

A: The animals that have 4 limbs are known as tetrapods and constitute the superclass Tetrapoda which…

Q: Are the morphological characteristics of a sponge enough to identify it up to the genus level? Why…

A: The morphological characteristics of a sponges are used to identify it up to the genus level but…

Q: What is the way of life of sponges?

A: Sponges belong to Phylum Porifera. They have many minute pores. They are sessile organisms.

Q: Three major phylogenetic groups of Bilateria are currently recognized: Ecdysozoa, Lophotrochozoa,…

A: Since the drastic reorganisation of the phylogeny of the animal kingdom into three major clades of…

Q: List the advantages and disadvantages of each sponge body plan: 1. Asconoid 2. Syconoid 3.…

A: Organisms of kingdom porifera are commonly called as sponges. These are aquatic organisms with…

Q: What are sponges which are commercially important?

A: A sponge may be a member of the Porifera. It's an easy animal with many cells, but no mouth,…

Q: What are the different groups of crustaceans and what organisms are placed in each group?

A: Groups of crustaceans: There are over 50,000 known species of crustaceans divided into a number of…

Q: What larval type do Anthozoans have and what phylum are they in?

A: Anthozoans are marine invertebrates which comprises of: Sea anemones Stony corals Soft corals

Q: What are some examples of cnidarians? In which environments can these animals be found?

A: Hydra, jellyfish, coral are the some examples of cnidarians. Presence of cnidoblast cell in their…

Q: How does the body plan of Orthonectida and Rhombozoa relate to their parasitic behavior?

A: *Dicyemida and the Orthonectida, two enigmatic groups of morphologically simple parasitic…

Classification of Marine Organisms

Classification is a way of categorizing organisms that enables an easy process of identification of such organisms. All living things are classified by grouping them under specific categories. The grouping is done based on the close relativeness of the organisms. The classification tool requires knowledge of characteristics, differences, and similarities between different organisms.