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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.
What is the phenomenon of the apical dominance in plants? How it can be artificially eliminated? The Apical dominance is the phenomenon by which high (over the positive range l
Q. Illustrate the major cells of the nervous system? The major cells of the nervous system are the neurons. as well the neurons the nervous system is also constituted of glial
Q. Show the Inventory of the plants? A flora provides an inventory of the plants of an area and is often restricted to the vascular plants. Floras contain description of plants
what is gaseous exchange
· If we are in dangerous areas, water, gas and electricity should be turned off quickly and we should move to a higher level of ground. · It s
The cell cycle undergoes a sequence of changes which involve a period of growth replication of DNA, Followed by cell division. This sequence of changes is called cell cycle.
How was it proved in the case of Amoeba that the key to the life of a cell is Nucleus?
Animal Cloning: When entire animals are obtained from somatic cells of an animal, it is known as animal cloning. Cloning is usual in plants but in case of animals only some deg
What is the main theory opposed to evolution? The major theory that opposes the evolution theory on the explanation of how species emerged (phylogenesis) is fixism.
State four long-term benefits of exercise. The long-term advantages of exercise are: a) Enhance in size of the muscles used, b) Decrease of heart rate and c) Enhance
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