What is the phylum of Spongilla?
Sponge
Spongilla/Phylum
What are gemmules in biology?
In botany, gemmules refer to the asexual reproductive structures in some plants, such as the buds of mosses and the spores of hydra. In zoology, gemmules are produced by sponges which can be dormant through the winter, and then later develop into new sponge. Gemmules are also called pangenes.
What are gemmules When are they formed?
Gemmule Formation in Sponges Gemmule formation occurs in freshwater by several sponges like Spongilia and some water species such as sea sponges, ficulina ficus, and various other types of poriferans. The organisms give out gemmules, which further give birth to new sponges.
What class is a sponge?
The approximately 8,550 living sponge species are scientifically classified in the phylum Porifera, which is comprised of four distinct classes: the Demospongiae (the most diverse, containing 90 percent of all living sponges), Hexactinellida (the rare glass sponges), Calcarea (calcareous sponges), and Homoscleromorpha …
What is the another name of Spongilla?
Spongilla lacustris, also commonly referred to as freshwater sponge, is a species of sponges from the family Spongillidae. They inhabit freshwater rivers and lakes, often growing under logs or rocks. Lacustris is a Latin word meaning “related to or associated with lakes”.
How do you identify a Spongilla?
1)It is a freshwater colonial sponge found usually. They are attached to sticks of wood in lakes and ponds. They are yellowish brown in colour and consist of numerous small individuals with flat base. Spongilla have canal system is of rhagon type and skeleton is of spongin fibres .
What are Gemmules give examples?
Gemmules are internal buds found in sponges and are involved in asexual reproduction. It is an asexually reproduced mass of cells that is capable of developing into a new organism, that is, an adult sponge. Example is Spongilla lacustris.
What is example of budding?
Examples of Budding Budding is a type of asexual reproduction, which is most commonly associated in both multicellular and unicellular organisms. Bacteria, yeast, corals, flatworms, Jellyfish and sea anemones are some animal species which reproduce through budding.
Are Gemmules motile?
Conidia are non motile asexual spores of kingdom fungi. Gemmules are the specialized asexual spores formed in sponges. It gives rise to a new individual.
What are the 3 classes of sponges?
There are three classes within the phylum porifera: Calcerea, Desmospongia, and Hexactinellida. Sponges are divided into these classes based primarily on the composition of their spicules and skeletal fibers. Spicules are rod-shaped cellular projections that make up the skeleton of sponges.
Why is SpongeBob a sponge?
The series’ creator, Stephen Hillenburg, was a marine science teacher and thought that the sponge was a fascinating and underrepresented animal. In The Origin of SpongeBob SquarePants, Hillenburg explained that he chose to focus on a sea sponge because he considered it “the weirdest animal” on Earth.
What is the Colour of Spongilla?
green
Complete answer: Spongilla is a freshwater sponge which is found both in clear sunlight or under the rocks and logs. When growing in the sunlight, Spongilla is bright green due to the presence of Zoochlorella, which are green algae that live symbiotically with any invertebrate or protozoans.
What kind of cell is a gemmule in a sponge?
Gemmules (Spongilla lacustris) Gemmules are internal buds found in sponges and are involved in asexual reproduction. It is an asexually reproduced mass of cells, that is capable of developing into a new organism i.e., an adult sponge.
What is the role of the gemmule in reproduction?
Gemmules (Spongilla lacustris) Gemmules are internal buds found in sponges and are involved in asexual reproduction. It is an asexually reproduced mass of cells, that is capable of developing into a new organism i.e., an adult sponge. Role in asexual reproduction
Where does the formation of a gemmule take place?
Formation of Gemmules Gemmule is created by few genus of fresh sponges like Spongilla and a few marine species together with ficulina genus Ficus, ocean sponges, and different poriferans, that manufactures gemmules to survive within the unfavourable conditions and to germinate and produce new sponges.
How is a gemmule similar to an endospore?
Gemmules are analogous to a bacterium’s endospore and are made up of amoebocytes surrounded by a layer of spicules and can survive conditions that would kill adult sponges. When the environment becomes less hostile, the gemmule resumes growing. Feldkamp, Susan (2002).