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Porifera (Sponges)
Sponges are very diverse invertebrates that live under the sea. They come in a large variety of colors, shapes and structural complexities.
779 Questions
What do flatworms have that sponges and cnidarians dont?
Flatowrms have muscle cells, they are a triploblastic phylum. They have endo, meso and ectoderm layers
Sponges are Parazoa and lack any true tissue at all
Cnidaria are diploblastic, having only endoderm and ectoderm
Actually, a sea anemone is none of these. Sponges are sessile creatures, arthropods have exoskeletons, and fish swim. Sea anemones are a type of cnidarian. They often reproduce by releasing polyps. They are related to corals and jellyfish.
A sponge definitely does have the ability to absorb heat. Sponges absorb heat as well as many other things like water.
Sponges (poriferans) are very simple animals that live permanently attached to a location in the water - they are sessile as adults. There are from 5,000 to 10,000 known species of sponges. Most sponges live in salt water - only about 150 species live in fresh water. Sponges evolved over 500 million years ago.
The body of this primitive animal has thousands of pores which let water flow through it continually. Sponges obtain nourishment and oxygen from this flowing water. The flowing water also carries out waste products.
How do nutrients and oxygen move throughtout the body of phylum porifera?
This is an interesting question. Apparently, Porifera, i.e, sponges do not have any digestive system. They have their specialized colony of animal cells doing it for them. The water flowing system in the porifera plays an important role. The small body of the porifera can take in particles and microbes which are less than 50 micrometers. They enter through ostia into the body that is lined by a specialized type of cells known as choanocytes. There are microville that absorb the nutrients for the growth of porifera.
There are a group of porifera which have evolved into carnivorous. They captivate and digest the crustaceans of size about 1 mm. They produce some kind of threads that capture them and roll around them to digest their prey.
Do sponges have segmented bodies?
Rather than calling it as having segmented body, it is more apt to say they have poriferous body that is body with many pores. Sponges are collection of microscopic animals.
The body of a sponge has two outer layers separated by an acellular gel layer called the mesohyl. The gel layer has calcium carbonate or spongin protein that gives it the rigid structure.
Why is hermaphroditism beneficial in sponges even though they rarely self fertilize?
Because the Earth is flat.
What are the characteristics for phylum porifera?
1; In this phylum animals has numerous small pores on their bodies.
2;Thes animal aer multicelluler.
3;They have no orgen or true tissus.
4;Their cell show a certain degree of independence every cell performs its all function.
5;Most of them are found in seawater but some of them found in freshwater.
By;JUNAID AHMED {Mirpurkhas}
How are yellow tube sponges harmful?
Yellow tube sponges get their name from their hollow, chimney-like body form. They pump huge quantities of water through their bodies, filtering out the tiny particles on which they feed.The tubes are at least 60cm (24in) high.At shallow depths yellow tube sponges have a shape which resembles a cactus. In deeper waters, the sponges develop long, straight tubes.
Their vivid yellow colour is probably due to special fluorescent pigments in the sponge tissue.
Yellow tube sponges occur at a wide range of depths in tropical seas, from the surface to several hundred metres down.They are often found in areas with strong currents which facilitate the movement of water into their feeding canals. These sponges are filter feeder that feed on bacteria, plankton and detritus.Sponges are capable of pumping at least five times their own volume of water through their feeding canal every minute. They are able to filter out even the most microscopic bacteria and phytoplankton. Sponges have male and female organs and reproduce sexually. They can also reproduce without sex: if a part breaks off, or fragments, it will form a new sponge.
What are two substances give the sponge support?
Support is basically provided by the calciferous and siliceous spicules it is covered with throughout. The spicules form the skeletal framework of the sponge. Also. the sponge is attached to the stratum via base, which adheres it to a fixed spot.
How many different types of food are there in the world?
Waaaay too many to count, but definitely in the millions!
No sponges lack organized multicellular organs, such as nerves and muscles.
Differentiate feeding mechanism of coelenterates and sponges?
Sponges smell of soap which is ok, also feeding mechanism is stupid, it's also very lazy. Just feed yourself or the animal yourself with the normal food.
What to do with a Sisal Sponge?
A sisal sponge can be used for various purposes, primarily in personal care and cleaning. In bathing, it serves as an eco-friendly exfoliator to cleanse and rejuvenate the skin. For household cleaning, it effectively scrubs surfaces without scratching, making it ideal for dishes or countertops. Additionally, sisal sponges can be composted at the end of their life, contributing to a sustainable lifestyle.
What part of the sponge do people use as bath sponges?
a. the flagella
b. the sponge skeleton
c.the hard spicules
Is sponge skeleton
