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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.
What are the three periods into which interphase is divided? Interphase is the preceding phase to the mitotic division. It is separated into three periods, G1, S and G2 (the l
The lower course - Classification of the river The lower course of the river occurs in the plains, across which it meanders or zigzags slowly. The river here loses much of its
Do beings of the class Reptilia perform gas exchange in the same way amphibians do? These beings do not have permeable skin so they do not make cutaneous respiration such as a
What is Archaebacteria ? Archaebacteria is a relatively new grouping that was created in the light of relatively recent biochemical and electron microscopic evidence. These fin
Explain Development of excretory system? The filtration rate of kidney is low and infants find it difficult to eliminate high concentration of solutes. However, by the end of t
Dietitians and nutritionists Dietitians and nutritionists, who are associated with hospitals and clinics generally have regular work hours. At times, they may be required to wo
who is the farther of bio diversity?
Define Recommended Dietary Allowances for Vitamin D? The recommendations of vitamin D are expressed as IU. 1 IU is defined as the activity contained in 0.025 mcg of cholecalci
3. Which substance(s) crossed the dialysis membrane? Support your response with data-based evidence.
How the Oxidation-reduction potential influence the spoilage of meat? You learnt earlier that the presence or absence of oxygen and the 0-R potential of the food itself has a b
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