Biology
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- Afra and Anita are good friends and neighbours. Since, Anita had many doubts in one part of her biology chapter, Afra had invited Anita to her home to teach her.
- Not at all. I believe that we understand better when we teach, so it benefits me as well
- Am glad u agreed to teach me. Hope it doesn't affect your schedule.
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- Okay...So I had way too many doubts in the excretory system
- Fine, then I'll begin from the first
- First of all, as you know, The excretory organs which are SKIN, KIDNEY, LUNG, LIVER
- SKIN- removes sweat, KIDNEY- removes urine, LUNG- releases CO2, LIVER- for urea
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- One main thing we study in this part is KIDNEY. Their functions in brief is secretion of urine, and osmoregulation.
- Ahh I know, Kidneys are bean-shaped!
- Also the right side of the kidney is slightly smaller than the left due to the suppression of the liver
- Yeah!, Good. Nephron is their structural and functional unit. They are located in the abdomen on both sides of the back bone
- And another important thing to remember is the structure and position of kidney
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