Sponges are also found in freshwater, though not as numerous as the marine varieties. One example of this group is Spongilla, which can grow in many different morphs. Spongilla and other freshwater sponges have developed specialized reproductive cells known as gemmules, allowing them to survive harsh environmental conditions.   Why are most Spongilla green?

Q: These differ from the other classes of sponges in that their cells are syncytial (multinucleate and…

A: Sponges are comes under the group called Porifera. The presence of pores on their body is a special…

Q: What is antheridial branch in funaria called?

A: Mosses belong to the kingdom Plantae and the associated division is Bryophyta. These flowerless…

Q: Would corals be able to live without zooxanthellae?

A: Corals are marine invertebrates belonging to the Anthozoa class of the phylum Cnidaria. They usually…

Q: Locate the radial ridges within each depression on a piece of coral. What structures within the…

A: The phylum Cnidaria, under kingdom Animalia, contains almost eleven thousands of aquatic species.…

Q: Briefly explain life cycle of pterido

A: All plants come under the kingdom Plantae. They are eukaryotes, multicellular, and having cell…

Q: The internal structure of many protists is much more complexthan that of cells of multicellular…

A: Eukaryotes that do not fit in the animal, plant, and fungal categories are Protists. Their…

Q: Why do poriferans lack true tissues?

A: It is required to discuss that Poriferans lack true tissues.The phylum Porifera are one of the most…

Q: Describe the morphology of oomycetes.

A: "Since you asked for multiple questions, we will solve the first question for you. If you want any…

Q: Which of the following is NOT a shared characteristic of all chordates? vertebral column pharyngeal…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: What features of animals separate them from their nearest relative the choanoflagellates? Choose all…

A: Evolution: Evolution is a systemic process which is happening step by step manner to select an…

Q: Describe the morphological and ecological attributes of the red algae? How do they compare to…

A: Note: As per the guidelines I am solving only three. Repost remaining, please. Red algae is an…

Q: Differentiate the functions of the macro-and micronuclei of ciliates. What is the advantage of…

A: A special feature of some organisms to possess different kinds of nuclei in the same cell is…

Q: In Hydrozoans such as the Obelia pictured above, what do gastrozooids and gonozooids have in common,…

A: Hydrozoa are taxonomic class of tiny, predatory creatures, a few lone and some colonial, the vast…

Q: What is the difference between primary algae and secondary algae?  Six major groups of algae? How…

A: Algae are photosynthetic eukaryotes that are closely related to the plants. They live in moisture or…

Q: Name two adaptive benefits of multicellularity. ANd explain why breifl

A: In unicellular organisms, one cell has to do all the physiological jobs. There is no specialization…

Q: One advantage of being multicellular is that the organism can increase in size. Unicellular…

A: Unicellular organisms are those organisms which are made up of single cells.for example; Protozoa…

Q: Differentiate sycon, ascon and leucon type of canal system. Use illustration to support your answer.…

A: Sponges are classified into three classes based on the presence of spicules or spongin and skeletal…

Q: Which of the following structures would be found in the mesohyl of a sponge? amoebocytes and…

A: The mesohyl is the layer of the sponge that is composed of a collagen-filled matrix and shows the…

Q: What type of symmetry is seen in the roundworm? Does it exhibit cephalization? Ascaris is a…

A: Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the question and…

Q: All of the following are true of Ctenophores except: A. Some species have long tentacles B. They…

A: Introduction:- ctenophores  are a phylum of marine invertebrates that live in sea waters all over…

Q: A certain unicellular eukaryote has a glasslike shell and exhibits autotrophic nutrition.  When it…

A: The question is asking to identify the clade or group to which a certain unicellular eukaryote…

Q: Which statement about sponges is false? Their bodies are supported by silicaceous or calcareous…

A: Sponges are belongs to the phylum porifera. The organisations of sponges show certain features…

Tissue renewal

In multicellular organisms, tissue is a level of structure that consists of a group of physically and functionally identical cells and their intercellular substances. Unicellular organisms do not have tissues. Tissues are absent or poorly differentiated even in the simplest multicellular animals, such as sponges. However, more evolved multicellular animals and plants have specialized tissues that may organize and govern an organism's reaction to its surroundings. The word tissue is derived from the Latin word 'weave.' Plants and animals have various kinds of tissue systems that differ in their work and composition according to the different requirements.