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LOCOMOTION IN LEECH -
Leech moves by looping action of its body on substratum.
Posterior sucker is attached to base, body elongates, then anterior sucker is attached. Now posterior sucker is free & it comes close.
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.
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Handling : The desire for survival is same whether in animals or human beings. You may be aware of the ability of even tiny animals to scratch and bite. So we won't say any more o
Q. Explain Limited mucosal contact diarrhoea? Limited mucosal contact diarrhoea: It results from situations of inadequate mixing of chyme (semi-liquid mass of food passing thro
Explain Pennate diatomsrole in diatoms? Pennate diatoms have bilateral symmetry, which presents side-by-side mirror images if divided down the middle or centerline, as seen
How do homeotic genes regulate development in Drosophila? Homeotic genes code for regulatory proteins that are thought to control the rate of cell division in various body area
Q How do antagonistic mechanisms manage homeostatic regulation? The homeostatic maintenance of the body typically occurs by means of alternating antagonistic compensatory mecha
Sheep-pox Sheep-pox, a highly contagious disease, causes a mortality of 20 to 50% in animals below the age of 6 months. It also causes damage to the wool and skin in adults. Of
The fact that some pure solutions of hydrocarbons do not readily evaporate at room temperature is a result of- Select one: a. London dispersion forces. b. The hydrophobic
Particulates: These are suspended droplets, solid particles or mixture of two. So all the atmospheric substances that are not gases are called particulates. A number of term
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