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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
The biologicaI species concept claims that species consist of natural populations and that species are real and objective. They are not man-made subjective abstraction. According
Which one of the following statements about certain given animals is correct? 1. Round worms (Aschelminthes) are pseudocoelomates 2. Molluscs are acoelomates 3. Insects ar
Where in eukaryotic cells does mRNA synthesis occur? To where do these molecules migrate?
Q. What are melanocytes? Melanocytes are epithelial cells of the skin specialized in secretion of melanin and Melanin is a pigment that besides coloring the iris of the eye and
Use the genetic code table Assignment34 The codon GCA specifies which amino acid?
when microbial culture must be harvested after giving osmotic stress to analyze osmotolerant genes?
Bovine spongiform encephalopathy The bovine transmissible spongiform encephalopathy (BSE), known as 'mad cow disease'-first noticed in Great Britain in 1986, is similar to scra
Explain the Stochasticity? Ubiquitous noise in biological systems creates stochastic methods central to modelling attempts. Stochasticity is available at all levels in environm
Explain the Root amputation, Hemisectioning and Bicuspidization Root amputation: removal of one or more roots of a multirooted tooth "upper teeth". Hemisectioning: surgic
Define Historical example of management of renewable resources? There are fundamental and well developed applications of mathematical and quantitative approaches to the managem
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