The phylum echinodermata is divided into many classes. It includes asteroidea, ophiuroidea, echinoidea, holothuroidea and crinoidea. The asteroidea are also known as the star form organisms. There body is flat…
The asterias is also known as star fish. They are carnivorous and reside in the rocky areas. They have a higher power of regeneration and autotomy. There body is divided…
The holothuria is also known as the sea cucumber. It occurs in the shallow part of sea. It respires through cloacae. It feeds on plankton and debris. It has a…
The antedon is also known as the feather star. It occurs in the bottom half of shallow part of sea. It feeds on plankton and debris and has great power…
The hemichordates are also known as the half notochord organism. They were also considered a part of chordate. They were placed in chordates by Bateson. They are known as independent…
Monera originate from primitive type of life referred as a progenote. It is a kingdom of prokaryotes which includes organisms such as bacteria, cyanobacteria, mycoplasma etc. They are present almost…
These are the organisms which belong to kingdom monera have cell wall made of peptidoglycan, cannot be seen with naked eye and lack membrane bound organelles. They were discovered by…
Mesosomes are discovered by Fitz James IN 1960. They are basically inward projection from the plasma membrane. It is divided into two parts as septal and lateral. Septal provides connection…
Ribosome is small organelle without any membrane. Its size ranges from 15 – 20 nm. They are classified as free and fixed. Fixed are those which are bound to plasma…
Chromatophores are present in photosynthetic organism as internal membranes systems. The different color bacteria like purple, green are included in this group.
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