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White shark : Characteristics, habitat, breeding, food of the white shark

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White shark : Characteristics, habitat, breeding, food of the white shark The white shark (Carcharodon carcharis) is the largest predatory fish that currently exists, capable of hunting large marine mammals that exceed it in weight.  They are vertebrate animals belonging to the Chondrichthyes class.  Therefore, its skeleton is of cartilaginous constitution. The great white shark presents sexual dimorphism.  Females are of greater length and weight, reaching a height of about six meters and a weight of about 1,905 kilograms.  Males are smaller, measuring between 3.4 and 4 meters. It is one of the longest living elasmabranchs.  Recent studies show that you can live up to 70 years. Carcharodon carcharias: It lives in almost all tropical and temperate coastal waters, from 60 ° north latitude to 60 ° south latitude.  It is a highly migratory animal, which attracts large crowds every year. Its muscular body is adapted to swim quickly, reaching speeds of over...

Principles of Cell Evolution: Origin, Types, and Development of Cells

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Principles of Cell Evolution: Origin, Types, and Development of Cells Principles of cell evolution, types and development of cells ​How did life begin on Earth? This is one of the most profound questions in biological science. The transition from non-living chemical molecules to the first living, self-replicating cell is a fascinating journey spanning billions of years. ​In this comprehensive article, we will explore the core principles of cellular evolution, the formation of the first primitive cells, Stanley Miller's famous experiment, and the evolutionary classification of cells into the three domains of life. ​The Origin of Life: Development of the First Cells ​The Earth was formed approximately 4.5 billion years ago. Initially, the environment was highly hostile, with extreme temperatures, volcanic activity, and a reducing atmosphere completely lacking free oxygen (O_2). ​1. Chemical Evolution (The Oparin-Haldane Hypothesis) ​In the 1920s, scientists Aleksandr Oparin and...