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Minerals and Trace Elements
Oxygen, carbon, hydrogen and nitrogen are the most common elements that make up 96% of the total weight of a mammal. The next most abundant elements are calcium, phosphorus, potassium, sulphur, sodium, chlorine and magnesium. These make up nearly the remaining 4%.
Fifteen additional elements are required but their total combined amount in mammalian body is less than 0.01% of the body weight. Of the known 90 naturally occurring elements how many are essential for life? This is not known for many animals. In humans 26 elements are known to be necessary.
STRUCTURE Each chromosome composed of two interwoven (coiled) threads called Chromonema (Chromonemata) embeded in a matrix of semisolid protein. Surface of matrix is in
PROTOPLAST Cell without cell membrane (Henstein) It contains 1 or more vacuoles. In mature plant cells protoplast forms a peripheral layer called Primordial utricle.
Why healthy skeletal muscle fiber is isolated A healthy skeletal muscle fiber is isolated and has no external forces on it. It has normal intracellular levels of ATP and is ba
Locomotion,nutrition and reproduction in ptotozoa
are protozoans primitive to life .
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
Types of leaves Collect leaves from such plants as lilies, bamboo, corn, willow and geraniums. View that the monocots (lily, bamboo, corn, sugar cane) have the veins running pa
DNA TRANSLATION AND TRANSCRIPTION
Q. What are the vessels that carry blood to the kidneys? Is this blood venous or arterial? The renal arteries are ramifications of the aorta and so the blood filtered by the ki
EXCRETIO N IN EARTHWORM - Main organs are nephredia, pharyngeal, integumentary & septed nephredia. Main are septal nephredia situated on septa.Nephrostome present. Body
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