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Briefly explain Lichens organism?
Lichens are unique organisms consisting of a symbiotic relationship between a fungus and a photosynthetic organism. They represent a type of symbiotic relationship known as mutualism, whereby both partners in the relationship benefit from living together, without adversely affecting each other. The fungus is usually an ascomycete, and the photosynthetic partner is often a blue-green alga or a green alga.
Lichens are able to grow in harsh conditions, and therefore are often "pioneers," the first to inhabit newly formed substrate. They can be found on bare rocks in cold and drought conditions. The fungal partner provides the algal partner with a tough substrate that collects water and minerals from the atmosphere while the algal partners contribute their photosynthetic products to the fungus. Lichens, therefore are also very sensitive to air pollution, and can be used as convenient indicators of air quality.
What is the logic of the transfusional compatibility concerning the ABO blood group system? The transfusional compatibility for the ABO system takes into account the antigens s
ELECTRON MICROSCOPY (EM) In EM, the object is viewed by a beam of electrons instead of visible light. An electron beam has a shorter wadelength (h = 0.004 nm) compared with vis
what are the origin, morphology, active constituents, uses and market preparation of tanco beans ?
Pyruvate Pyruvate has three different fates. Under aerobic conditions, pyruvate enters mitochondriaand is converted to acetyl CoA. The acetyl CoA enters thecitric acid cycle.
what are the principle sources of excessive nitrate and phosphate in rivers and lakes?
What are the Sources of Vitamin K? As mentioned above, in plants, the only important molecular 'form of vitamin K is phylloquinone. Phylloquinone is distributed ubiquitously th
Determine by nutritive muscular cell? The cells which form the gastrodermis lining the inner cavity of cnidarians. They carry out two functions: First is to absorb and digest f
How cell divides?
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Question 1 State the basic properties of light. Discuss the special features of ultra-microscopy and phase contrast microscopy Question 2 What are ultrasonic waves.
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