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Carbon paper leaf prints
Cover the vein side of a leaf with a very thin layer of lard or vaseline. Place the greased leaf vein side up on various layers of newspaper and cover with a sheet of carbon paper. Cover the carbon paper with another sheet of paper and rub across it various times with the side of a smooth pencil, to coat the leaf with material from the carbon paper. To make the final print place the leaf among two sheets of white paper and again rub with the pencil
Distinct types of proteins Two distinct types of proteins are known: fibrous and globular proteins. Fibrous proteins are insoluble in water and are physically tough, which
general characteristics
How does chemical adsorption of a gas on a solid vary with temperature? a) Mention the main reason for the anomalous behaviour of lithium in Group of the periodic table.
CAUSE S OF VARIATION - Effect of environmental conditions Change in the gene pattern like - (a) Random distribution of homologous genes in meiosis (b) Crossing over
Biogeography : This is the distribution of organisms in various parts of the earth. Over periods of ecological changes, biogeography contains the study of plant or animal species i
CT is a 3 year old female who develops signs of hypoglycemia in the early morning unless she is fed during the night. CT eats balanced meals for her age group during the day, with
What is the pineal gland? The pineal gland, also called as pineal body or epiphysis, is situated centrally in the head. It secretes the hormone melatonin, a hormone formed at n
How different are the location of ribosomes in eukaryotic and in prokaryotic cells? In prokaryotes ribosomes are create free in cytoplasm. In eukaryotic cells they can also be
What are the main divisions and representing species of the gymnosperms? This group of plants can be divided into conifers (pine, sequoia, cypress), that have flowers known as
Where in eukaryotic cells does mRNA synthesis occur? To where do these molecules migrate? Messenger RNA molecules are synthesized within the nucleus, pass by pores of the nucle
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