In allergic responses the body's immune system attacks allergens (such as pollens, venom, etc.). However, in autoimmune diseases
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A spirogyra is a filamentous chlorophyte green algae. A well-labelled diagram of spirogyra is attached.
Explanation:
The presence of hellical or spiral arrangement of chloroplast makes it from the order Zygnematales of Zygnematacae family of Algae.
It is commonly found in fresh and stagnant water.
A mucilaginous outer covering makes it slimy in texture.
It is a green algae hence undergo photosynthesis and is autotroph.
It can reproduce both sexually and asexually.
