Porifera (Sponges)

Reproduction

Like all other organisms, sponges need to produce and generate offspring. However, their methods of performing such quintessential tasks are very divsersified. Unlike humans, porifera may propogate both sexually and asexually. The processes may be oviparous, where there is a mass spawning of eggs and sperm, or vivivparous, where the cells are incubated prior to releasal. In addition, sponges may commence to reproduce at the age of three years. The genetics systematics of porifera are fundamentals of new scientific research throughout the world. By revealing and untangling the convoluted and cryptic reproduction patterns of porifera, it is theorized that such research may be implemented to benefit humans. Below is a comparison of sponge reproduction processes. (To learn about recent research, follow the link to the current studies section of this site.)

Asexual methods of reproduction

1) Budding and Gemules- A mini-sponge branch forms on the exterior of the sponge. After a period of time, currents may cause this to break off from the rest of the sponge.

2) If a conglomeration of sponge cells is extracted from the main body of the sponge, it will develop into another porifera.

Sexual methods of reproduction

1) Basically, most sponges are hermoprhoditic (being of both genders or able to change between these genders). Eggs and sperm are released, and these cells are cross fertilized. Whence, they float to some uninhabited section of the ocean floor and initiate their life as a sponge. This is actually synchronized between species.

Two important terms to remember are viviparous and oviparous. Viviparous sponges incubate the eggs within their branches before releasal. Oviparous simply release the sponges.

yes

A sea sponge absorbs water through numerous minute, dermal pores on its body surface known as ostia.

They Filtear Feed and through there Reperitory systems they filter out the oxygen into there sestems ,simalar to gils on fish, where the sponges cells then go through a process called cellualar repiration in which thier cells use and reuse energy of the movement of the atoms to produces ATP.

sponges use toxins to repel would be predators

In mammals and fish it is lungs

They don't nessessarily breath, yet they do respire. They must have oxygen because they are living animals, so every cell in the sponge takes in oxygen and puts out carbon dioxide.

Yes.

um ovelsly uv been watching 2 much sponge bob cause a sponge is an object NOT a living thing

Um, obviously you are both unable to properly use the Google Search feature or Wikipedia. Sponges can be synthetic, but there are most definitely creatures called sea-sponges. These natural sponges can be found in their dead, dry form at luxury bath shoppes and in the paint section of local hardware stores. Live sponges live from 17 to 8,840 metres under the sea, and are multicellular animals that have no nervous system, but rely on water flow for oxygen, nutrients, and waste removal. Some are mobile, and prey on small crustaceans, but most are solely filter-feeders. They can produce asexually when small clusters of cells break away from the parent organism and multiply, and can reproduce sexually as well. Sponges are hermaphrodites, meaning they have male and female sex cells, and can self-impregnate. Offspring may number in the thousands.

Synthetic sponges are made of spun plastic and/or foam. they are not live, but can harbor cultures of bacteria, yeast, and molds. Bleaching, washing in the dishwasher, or microwaving the sponge for thirty seconds is sufficient to kill these possibly harmful colonies.

Rainbows and Lollipops

sponges have holes in thier body because they can't breath if they have no holes in thier body.Because sponge do not have body organs or body parts.

A sponge is classified as an animal because it needs the 4 basic needs.

Sponges do not have chlorophyl, therefore they are not able to engage in photosynthesis. They have a symbiotic relationship with algae, using the algae for food, and the algae has a "home".

sponges have no symmetry

animals with radial symmetry are radiata and cnidaria, like jellyfish

They went from simple colonies of cells (such as some groupings of bacteria) to multicellular creatures with some cell specialisation.

yes. The tiny eggs measure no mores thaw a thousand to an inch. When they hatch they leave home and swim off into the water. Many of these little larvae ‑sponges are swallowed by fishes.

== == There are many kinds of leeches and each has their own food requiremnt. But generally speaking they eat, snails, fish, frogs, worms, fish eggs, insect larvae and even decaying matter at the bottom of a pond. In any case they don't need to eat often. They can go from weeks to months without food. (www.rosepond.com) == ==

Yes Sea Sponges Grow... they grow other sea sponges by reproduction! It starts with a bud, then it turns into an even bigger bud...until it gets to be a big enough sea sponge that it can provide its own foods. at this point it gets cut off!

only 4000 minutes and three seconds real answer is its habitat is you can find it in the reef of any ocean

elastic fibers

With spicules and spongin

Cnidarians have strings to get their food also to get protection they are also divided in three groups what they also have that sponges dont is string cells and they have a simple nervous system . On the other hand,Sponges have No symmetry they never move and have no organs .

Thanks for using my answers to help

you with your science work .

first of all, there is two types of sponges. one of them are when you take them and clean the dishes or toilet, tub. The other 1 is where it lives under water. And you can learn that in class when, you are doing science. "Grade 6 Diversity Of life". the other 1 you can learn in grade 1, 2 or kindergarden, preschool.