Taxonomy, species and types of living things
The species A species is a group of more similar living organisms in the shape that can reproduce to give birth of new fertile individuals which are able to reproduce and keep the existence...
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Classification of mammals according to kind and number of teeth
The mammals The mammals are classified according to the kind and the number of teeth into the edentates mammals (The teethless mammals), and the mammals having teeth.
Graduation of metallic and nonmetallic property in the modern periodic table
Modern periodic table In the modern periodic table, each period starts with the strong metal (in group 1 (1 A), where the metallic property decreases by increasing the atomic number, till we reach the...
Ways to protect living organisms from Extinction & Important word protectorates
The awareness of protecting natural life increased after great harmful consequences that appeared since the mid-twentieth century. As each species of the plant gets extinct, 30 species of animals that rely on it as...
