Essays on Desiccation

Bacteria refer to the regnum of prokaryotes (Sundararaj, Mudaliar, Anthoniraj, Kannan, Muthukaruppan). For the current moment, it accounts for more than ten thousand kinds of bacteria. The bacterium is recognized as one of the most ancient of living organisms, arising about 3.9 – 3.5 billion years ago. Bacteria have the substantial variation in the ways of metamorphic and energetic metabolism. Thus, autotrophs can synthesize all necessary organic molecules from non-organic compounds, whereas heterotrophs demand active organic compounds to transform them. The biggest degree of heterotrophs belongs to intracellular parasites. They are called saprophytes (Sundararaj, Mudaliar, Anthoniraj, Kannan, Muthukaruppan) and can ...

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Introduction Wheat (Triticum sp.), an extensively adapted crop, is one of the primitive and primary staple food crops in the world. Wheat is cultivated from temperate; dry to irrigated or rain-fed areas, to warm, humid or cold conditions. Such a high adaptability is attributed to its intricate genome (Acevedo et al., 2002). Wheat cultivation covers more land area compared to other commercial crops and endures to be an essential food grain for humans (Curtis, 2002). Estimations reveal that by 2050, the population of the world will reach 9.1 billion (34 percent greater than today); correspondingly, the food requirement and ...

Fossils are used to refer to the traces or remnants of the past life. They are the remains of the animals, plants, organisms, or things that existed on the earth in the past. The activities of such beings can also be categorized as fossils. The term fossils means something which is obtained by the process of digging. Since fossils provide the remnants of the creatures that existed in the past, they are a good reflection of the life and life forms in the past, and much about the conditions and creatures of the past can be determined by examining the ...

The transition from aquatic to terrestrial habitat no doubt posed some challenges to plants. They have had to overcome challenges in order to adapt completely to life on land. Some of the challenges that that plants faced by moving from water to land was the problem of water loss. They also had to overcome the challenge of reproduction. Also, terrestrial plants have had to evolve new ways of feeding. Some of these are presented below. The evolution of plants to terrestrial habitat took place from their ancestors which were algae. Algae had to adapt to living in shallow ...