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Q. How be able to the excretory system of annelids be described?
In each segment (metamere) of the being a pair of complete excretory structures known as metanephridium exists. The metanephridium has an extremity, the nephrostoma, which collects residuals from the coelom, causing reabsorption and filtering them along its extension similar to human nephron tubules. The material to be excreted goes out through a pore, the nephridiopore, which opens in the body surface.
Weight of Plants - Quantitative Characters Weight is one of the most important quantitative characteristics of plants. Quantitatively growth is best measured on the basis of d
How the Wet beriberi Developed Rapidly? Oedema is the significant feature of wet beriberi. It may develop rapidly and involve not only the legs but also the face, trunk and ser
Aim: To prove that oxygen is evolved during photosynthesis. Apparatus: Beaker, funnel, test tube, water, Hydrilla plants. Procedure: Take a few pieces of Hydrilla plant. Keep a
What is the connection among this substance, mouth bacteria and tooth decay? Mouth bacteria use sugar for their metabolism and produce acids as a waste-product. The acids diss
Q. Is the stage when an insect larva is within a cocoon a stage of total biological inactivity? The period when the larva is inside its cocoon is a time of intense biological a
Vitamin B Complex The vitamin B complex comprises the vitamins B 1 , B 2 , B 6 and B 12 as well as the vitamin B factors biotin, folic acid, nicotinic acid and its amide as w
Complete the sentence by choosing one of the given biological terms. If an ulcer continues and ultimately erodes all the way through the wall of stomach or duodenum, condition
WHAT IS CHARACTER SELECTION CRITERIA
What is the function, other than protection, of the ribs? The ribs help to alter the volume of the thorax during breathing movements.
Define Principle for Iodine Number Estimation - Lipids? Iodine number is defined as the number of grams of iodine absorbed by 100 grams of fat, it gives an idea of the relative
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