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Plant propagation . Each type of plant requires its most suitable type of propagation from the most natural and known as it is through the seeds or by division of roots for example. In general, perennial or shrub plants are usually propagated by cuttings and root division, and annual and bi-annual seeds. Let’s know the propagation methods of … Read more

Plastids , (Plastids or Plastids). They are eukaryotic cell organelles, typical of plants and algae . They are self-replicating structures surrounded by a double membrane. Summary [ hide ] 1 Function 2 Origin 3 Features 4 Types of plastids 5 Development and Reproduction 6 Sources Function Its main function is the production and storage of important chemical compounds used by the cell . They usually contain pigments used in photosynthesis , although the type of pigment present … Read more

Red palm weevil : The red palm weevil (Rhynchophorus ferrugineus) or ferruginous curculionidae is an insect that lives at the expense of palm trees. This insect lives and feeds inside the leaf bases and inside the trunk, making it difficult to detect even by thorough visual inspection. Summary [ hide ] 1 Symptoms and Damage 1 Other possible symptoms of red palm weevil 2 Control methods … Read more

Chinese stone fish . It lives in sandy terrain near coral reefs, it is identified by having the internal surface of the pectoral fins dark, with large whitish or yellowish spots, which do not form bands. Summary [ hide ] 1 Features 2 Habitat 3 Distribution 4 Source characteristics This stonefish is identified by having the inner surface of the pectoral fins dark, … Read more

Selective breeding for centuries has produced some color variations, some of them far from the “gold” color of originally domesticated fish. There are also different body shapes, fins, and eye configurations. Some extreme versions of goldfish only live in aquariums, which are much less hardy than varieties closer to the original “wild”. However, some variations are more resistant, … Read more