Question

Based on the diagram answer the following, what is the function of these bodies

A. Secret sponging skeletal fiber
B. Helps in perennation and asexual reproduction
C. Helps in transportation nutrition
D. None of the above

Answer 1

Hint: Porifera belong to the sponge’s group, they are known to be aquatic invertebrates. They are multicellular organisms that have our bodies entire pores and channels permitting water to circulate through them, along with jelly-like mesohyl sandwiched between skinny layers of cells. The branch of zoology that studies sponges is known as spongiology.

Complete answer:
Asexually produced mass of cells, which can be able to develop into a new organism into a freshwater sponge is called a gemmule. They are small bud-like cells, which may be fashioned by using the manner of sponges to withstand adverse environmental conditions. A freshwater sponge reproduces every by sexually and asexually. Asexual duplicate is especially performed using way of budding and additionally via gemmulation. The inner buds, gemmules are hard and coated with a dormant cluster of embryonic cells. During gemmule formation, the archaeocytes- totipotent cells, that are loaded with meals fabric inside the shape of glycoprotein or lipoprotein get combined properly into a mass. An amoebocyte – a mobile with motility, goes with the flow and surrounds the giant mass of archaeocytes and starts off evolving to secrete thick strong chitin round archaeocytes and bureaucracy a layer around it. A completely formed gemmule is ordinary in size, hardball like shape, having a mass of meals loaded with reproductive cells, which might be embedded in a double membrane layered thick envelope with amphi disc spicules in between.
The correct answer is option (B), i.e., Helps in perennation and asexual reproduction.

Note: Gemmules are proof against dehydration, freezing, and may stay to tell the story even without oxygen delivery. The outer layer of the gemmule is enclosed and protected with the endospore this is surrounded by a layer of spicules, which enables the gemmule from all different negative environmental situations and additionally allows gemmules in developing into a grownup freshwater sponge.