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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
Adaptive Radiations The organisms all the time tend to establish harmony with their environment. This process, called adaptation, enables the organism to face the vagaries of
Following are the advantages of the DSME: It enables the patient to 1. Accept the disease. 2. Gain knowledge about disease, its prevention, treatment and management. 3.
Define the term - Stimulus Stimulus and response characteristics of the tests themselves, as well as of the test instructions, become exceedingly important considerations. In g
Drosophila has 4 bivalents (homologous chromosomes) formed at Meiosis I. How many chromosomes and chromatin strands are present in each of the following stages- Anaphase of mito
Health Education to Hospitalised Child You have unique opportunity for teaching and reinforcing good hygienic care while the child is hospitalised. Clean hair, nails, clothin
Conclusions drawn from the Monohybrid Crosses From the results of his monohybrid crosses, following conclusions were obtained :- 1 . Law of Unit or Paired Factors (Po
wht is the main quality of this phylum
A 16 year old boy named Jake was admitted into the emergency room complaining of headache, fever, stiffness of abdominal muscles and difficulty swallowing. The doctor on staff bega
A pair of ovaries are the reproductive organs in woman. They are present just below the kidneys in the abdominal cavity. Each ovary has several sac like structures called ova
Classifying Organisms You have now seen that the binomial nomenclature gives each species a unique and unambiguous name. It is necessary lo group species into genera and gener
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