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To show the presence of nodules of nitrogen-fixing bacteria on the roots of legumes
Carefully spade up some leguminous plant like as clover, alfalfa, soy-beans, cow peas, etc. Take out the soil from the roots by washing with water. Observe the little white bumps or nodules on the roots. Nitrogen-fixing bacteria are inside these nodules. These bacteria take out nitrogen from the air and fix it in a form that enables plants to get it from the soil.
b) discuss briefly the scientific and technical achievements of the bronze age
discuss determinants of food security
Explain Protective and Excretory Function Protective function: Large quantity of mucin is secreted by gastric glands. Mucin lubricates the food bolus (a mass of chewed food) an
Why are peaty and marshy soils highly acidic? The acidity is due to decomposition of organic matter under anaerobic conditions and formation of sulphuric acid.
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What is the Effect of the Number of Teeth with regards to Rotation?
Define Pollutants Regulated Under the Clean Water Act? The Federal Water Pollution Control Act (FWPCA) Amendments of 1972 later amended while the Clean Water Act (CWA) organize
Explain Gametocyte colony stimulating factor It is produced by monocytes, fibroblasts and endothelial cells due to the stimulation of 1L-1. It stimulates proliferation of proce
Explain the Process of Hearing The ears, as we all know, are sense organs for hearing. The ear consists of an external ear, a middle ear and an internal ear. It houses receptor
Hormonal system: Most of us are not even aware that another system works constantly, along with the nervous system and the muscles, to direct our bodily functions. The system
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