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Making leaf collections
Collect young leaves of as many varieties of plants as possible. Place various layers of news- paper or blotting paper on a firm, smooth board. Next organize the leaves so they do not touch. Cover the leaves with other layers of newspaper or blotting paper. Place another board on top and then place various heavy stones or weights on the board. Keep the leaves in the press until they are thoroughly dried. When the leaves are removed from the press they may be neatly in order on note book pages and secured either with Scotch tape or small sections of gummed labels. The name of the leaf and any other exciting material can be recorded on the note book page.
Explain what is Light Microscope - Microscopy Modern light microscopes are compound microscopes. Here the magnified image formed by the objective lens is further enlarged by on
Zymogens, or proenzymes, are enzymes secreted in inactive form. Under certain conditions, a zymogen shifts to the active form of the enzyme. Zymogen secretions in general occur due
In vivo imaging in psychiatry To illustrate the ingenious applications to which in vivo imaging can be put, consider the use of PET in the study of hallucinations by Frith and
Select all that are true: Plants do not have mitochondria, they have chloroplasts to convert the sun's energy into chemical energy via photosynthesis and do not need to make ATP us
What is predatism? Predatism is the ecological interaction in which one individual mutilates or kills another to get food. Predatism is an inharmonious (negative) ecological i
What is a food chain? The food chain is not branched it is linear sequence in which a living being serves as food for another, starting with the producers and going up to the d
Evolution of migration Eg Benefits associated with migratory flights must be greater than those associated with staying in Alaska and having to tolerate seasonal changes
Hans spemann theory
Culture Medium - Techniques of Plant Tissue Culture In nature green plants are capable of synthesizing organic compounds necessary for their growth and development from the mi
In what ways does over-grazing lead to soil erosion?
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