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Excretion in Protozoans
Excretion of metabolic wastes is dope almost exclusively by diffusion. All protozoans are ammonotelic i.e., the end product of their nitrogen metabolism is ammonia, which is readily diffused in the surrounding medium.
Figure: a) Parumecium with cytopharynx, food and contractile vacuoles and nuclei b) Enlarged section of a contractile vacuole in Paramecium which collects water and expels it outside, performing osmoregulatory functions
Ciliates - Parasitic Protozoan The only ciliate of medical and veterinary importance is Balantidium coli which inhabit the large intestine of man, apes, monkeys and pigs. B. c
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Q. Describe the Discovery of the Cell? Ans: The discovery that living organisms are composed of cells was made by an Englishman, Robert Hooke, in 1665. Hooke used the light mic
using a specific example describe how hormones have an important role in the regulation of body functions and also, what happens if there is an over secretion or an under secretion
WHAT ARE THE BRANCHES AND CONCEPT OF APPLIED BIOLOGY
Q. How is reproduction done in beings of the class Reptilia? These beings reproduce sexually through internal fecundation by means of copulation between female and male individ
respiratory system in amphibains
Wind Strong current of air is known as wind, it is an important ecological factor as it affects plant life mainly on flat plains, along sea coasts and at high altitudes in moun
Define about the Carbohydrates - nutritional biochemistry? Carbohydrates, you should observe by now, are made up of carbon, hydrogen and oxygen only with hydrogen and oxygen at
Explain the Miracidium larva? Miracidium is the first stage larva that comes out from the fertilized egg. i) Miracidium is an oval, microscopic, flattened larva which appear
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