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Thermodynamics and Cell Shapes
Why are protoplasts (cells devoid of cell wall) spherical? Why are most of the unicellular organisms (prokaryotes and eukaryotes) spherical? A sphere is a form which provides maximum surface area for absorption and interaction. In this form a cell remains at the lowest possible energy. In tissues, cells acquire different fops like polygonal, rectangular, irregular etc. Here the concern is to accommodate maximum number of cells in minimum area, so that complete functions are being taken care of.
Locomotory Structures Annelids possess three kinds of locomotory structures, namely parapodia, setae and suckers. Parapodia are segmentally arranged, lateral, hollow extensio
The five kingdom systems To cope up with above discussed problem a number of alternative classificatory schemes have been suggested with more than two kingdoms. The one which h
What is Lactation? High levels of estrogens and progesterone during pregnancy stimulate the breasts to develop prior to lactation, or milk production. At the same time, levels
Why are the recombinant DNA technology and the nucleus transplantation technology still dangerous? A recombinant DNA technology and the nucleus transplantation technology (clon
Q. What are the main human diseases caused by fungi? The major human diseases caused by fungi in immunocompetent patients are , blastomycosis, histoplasmosis, paracoccidioidomy
Explain Evidence of coverage of Ecology Evidence of coverage of Ecology and Evolution to the level of Descriptor 2 and an evaluation or discussion that shows depth of underst
Bioclimatology: This is the study of effect of climate on distribution of organisms. Bioclimatology is the inter-disciplinary field of science which studies the interactions betwe
What are the respective functions of the separation of homologous chromosomes and of the separation of identical chromatids in meiosis? The separation of homologous chromosomes
FUNCTIONS OF CELL WALL 1. Provides shape to plant cell rigidity to cells. 2. Functions as a barrier to entry of pathogens into the cells. 3. Provides pr
Advantages of Fertilizers and manures Fertilizers and manures are necessary for maintaining the soil in a high state of fertility and productivity. It is important to know the
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