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Algae are a diverse group of eukaryotic cellular or multi-cellular organisms. They inhabit both in aquatic and terrestrial environments. Some occur in moist stones, wood, soils, on ice, or snow. They have photosynthetic pigments that perform photosynthesis, produce oxygen, and remove at least half of the total carbon dioxide from the earth`s atmosphere. Algae perform … Read more
The cell is the fundamental structural, biological and functional unit of all living organisms. It is also known as building block of life. The numbers of cells vary from species to species. Each cell is enclosed by a membrane and composes of proteins and nucleic acids. In bacteria, fungi, algae and plant cell, the outer … Read more
The cell is the functional and structural unit of all living organisms. The eukaryotic cells are present both in the plants and animals. The cells have various shapes, sizes, and physiology. Each cell is composed of cell membrane, cytoplasm, different organelles , nucleus, and ergastic substances. Cytosol is the part of cytoplasm which contains over 70% … Read more
Nitrogen is the necessary component of life, which is essential to all life-forms. The naturally available environmental nitrogen is inorganic, which convert into organic compounds like ammonia by the presence of nitrogen-fixing organisms. These natural nitrogenous products are taken up by plants and animals. The excess amounts of these products are removed in the form … Read more
All types of cells are bounded by a thin, porous selectively permeable membrane which is known as the plasma membrane, cell membrane, plasmalemma or cytoplasmic membrane. It distinct the content of cell from the outside environment. Carl Nägeli and Carl Cramer first discovered the term cell membrane in 1855 while Janet Quentin Plowe given the … Read more
There are approximately 34,000 known fish species throughout the world which live in either fresh or saltwater environments. They are cold-blooded animals but only the opah (Lampris guttatus) is warm-blooded fish which is also known as cravo, kingfish, moonfish, and Jerusalem haddock. There are two main groups of fish, namely Chondrichthyes and Osteichthyes based … Read more