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Why do leaves change color?
Leave is the food factories of plants. During the spring and summer, leaves are actively making food and they are filled with chlorophyll, which gives green color.
As summer, ends and the days get shorter and cooler, food production stops and the leaves stop producing food. The chlorophyll disappears and they start to change into the yellows, oranges, and reds that we see in autumn.
Soil fertility evaluation In order to maintain soil fertility, nutrients removed from the soil by crops must be restored by the application of manures and fertilizers. The se
Q Which is the kind of nitrogen waste birds produce? Why does this feature, besides being an adaptation to the terrestrial environment, also mean an adaptation to flight? Birds
What is scientific investigation?
Modern Biology Increasing advancement in biotechnology has brought about a veritable explosion of Biological knowledge since early 1950s.This vast modern biological information
Define the Poverty and hunger - mutually causes, devastating effects? Measures of food deprivation, nutrition and poverty are strongly correlated. Countries with a high prevale
Compare the modes of intercellular communication used by the endocrine and nervous systems and discuss the functional significance of the differences between the two systems.
Explain the classes of biomaterials When an artificial material is placed in the human body, tissue reacts in a variety of ways depending on the material type thereby, affectin
COMBINE D EFFECTS OF DRUGS AND ALCOHOL - 1. Alcohol + Barbiturates → may lead to death . 2. Alcohol + Antihistamines → Drowsiness 3. Alcohol + Valium
Explain the Process of Canning? The basic principles of canning have not changed dramatically since Nicholas Appert and Peter Durand developed the process. Heat sufficient to d
What is the difference between an acid and a base? Base is anything, which has a capability to abstract a proton. Using the easiest definition, an acid is something when add
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