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medical science in ancient indiadhanvantri -god of medicineashvini kumar - famous medical man of vedic timessusruta - first indian to study human
difference between open system and closed system -snocharacteropen systemclosed system 1 relationship with environmentcan exchange the material
difference between plants and animals -s n o c h a ra c ter p l an tsa n i m al s1nutritionmostly
difference between living and non-living beings -s nocha ra cte rliving be ingsnon-living be
biology - a science of exception -some common examples to prove it are -1 embryos of dicot plants have 2 cotyledons but in
lifescience is originated from latin word scientia which means knowledgebiology is a branch deals with living beingsbiology word is originated from
modification of mitosis1 cryptomitosis or promitosis primitive type of mitosis in this mitosis nuclear membrane not disappear
human chromosomesthe normal diploid 2n chromosome number in human being is 46it was given by th tjio and a levan in 1956the chromosome complement of
supernumerary or accessory chromosomeswilson 1905 discovered them in matapodium insectvery small chromosomes present in nucleus in addition to normal
theories to explain fine structure of chromosome1 multistranded theorysteffenson 1959 - each chromosome composed of two chromatids half chromosome
karyotypeexternal morphology of chromosomes specific for each species of living organismskaryotype can be studied in metaphase of mitosiskaryotype
numberbenden and boveri first indicated that number of chromosomes is definite in each organism1 haploid n - one set of chromosomes ie one chromosome
chromosomeskarl nageli and hofmeister observed chromosomes in pollen mother cells of tradescantiachromosome name proposed by waldeyerduring cell
intermediate filamentsthese are non-living structuresmade up of different types of protein eg keratin synemin desmin and vimentinthese are divided
microfilamentsdiscovered by pelvitzthese are smallest cell structurethese are non-living structuresthese are solid structures consists of actin
compare and contrast the structure of the following hyrda plain hydra mematocysts obelia amoeba euglena paramecium caudatum conjugation euglena
sirmadam i am a banquet farm owner and face the problem with the grass that in november amp december the grass does not grow well or disappear
you tested three different treatments for ripening bananas before you did the lab which one did you think would have ripened most state your
why is it necessary to have the second division in meiosis even though cells have already been reduced to haploid number after the first
microtubulesdiscovered by de robertis and franchiterm given by slautterbackthese are hollow structures consists of tubulin proteineach protein diamer
functionin animal cells centrioles play important role in initiation of cell division by arranging spindle fibres between two poles of cellthus they
microbodiessingle unit membrane bound small spherical structuresmicrobodies are structurally related to lysosomeon the basis of functions microbodies
vacuolesthey are of 4 types -1 sap vacuole -outer membrane of sap vacuole is called tonoplast sap vacuole contains amino
aleurone grains -also known as plant lysosome because they contain hydrolytic enzymesconsists of proteinsthey are also known as aleuroplast because