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Protozoans are microscopic in size however some are large enough to be seen with naked eye. Microscopic organisms such as these have numerous advantages, one of which is that they have a high surface-to-volume ratio. That's an advantage since diffusion is an important process for many of their functions. Don't let their small size fool you; these are very complex organisms. Everything they do, and how they do it, is packed into a single cell. In case of animals, organs and tissues become specialized for specific functions; for protozoans, it's their organelles that take on the same functions.
One of man's oldest methods of preserving foods is drying or desiccation. The preservation of foods by drying is a direct result of removal of moisture. Microorganisms need water
Apical Dominance Apical dominance is a correlative phenomenon in the developmental biology of plants. Branching of the main shoot into lateral branches is one of the main char
Define the Understanding the Concept of Food Security? Food security may be defined as a physical and economic access by all people, at all times, to sufficient food to meet th
Q. If a fragment of nucleic acid has a nucleotide sequence TAC can one assert that it is an anticodon or a codon? A nucleic acid having a TAC sequence surely is not tRNA it is
Explain Skin changes During Kwashiorkor? In many cases, dermatosis (changes in skin) is seen. Such changes are common in areas of friction. Dark pigmented patches, akin to sun-
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Exchange of oxygen, nutrients, carbon dioxide and waste products from mother to fetus takes place through diffusion across the: a) Chorionic villi (pron: core-e-on-ick villi)
A solid compound was found to contain 42.11% C, 51.46%O and 6.43% H by weight. The molecular weight of the compound was 341. What is the molecular formula of the compound?
Role of citrate Citrate in addition to being an intermediate of citric acid cycle provides a source of acetyl CoA for the cytosolic synthesis of fatty acids. Citrate inhi
Q. What is the significance of mitosis for the embryonic development? Every embryo grows from a single cell that bears mitosis and generates other cells that also divide themse
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