Primary Data and Secondary Data – Definition, Differences, and Examples in Research
Learn the differences between primary data and secondary data in biology with definitions, examples, advantages, disadvantages, and research tips.
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Adsorption Chromatography – Principle, Types, Procedure, Applications & Advantages
Adsorption chromatography is a type of liquid-solid or gas-solid chromatography where compounds are separated based on how strongly they bind (adsorb) to a solid surface.
Affinity Chromatography – Principle, Components, Procedure, Applications & Advantages
Learn about affinity chromatography, its principle, components, procedure, types, applications, advantages, and limitations in biology and biotechnology.
Chromatography – Principle, Types, Steps, Uses, and Advantages
Learn about chromatography, its principle, types, steps, and applications in biology, research, pharmaceuticals, food safety, and forensic science.
PCR Machine – Principle, Steps, Types, and Applications
Learn about PCR machines (Thermal Cyclers), their principle, parts, steps, types, and real-world applications in research, medicine, forensics, and food safety.
Mycoplasma: Structure, Habitat, Morphology, and Clinical Significance
Mycoplasma are the smallest known free-living organisms without a cell wall. They are unicellular, prokaryotic (Gram -ve), and independently replicating (i.e., they contain metabolic machinery to grow and multiply in the absence of other cells, thus showing autonomous growth).
Research Methodology: Meaning, Definitions, Characteristics and Types of Research
Research is a continuous activity in most disciplines and professions. It helps in critical assessment of work, policy execution, and instruction.
Asterias: Structure, Diagram and Water Vascular System
Water Vascular System is a unique system of echinoderms which helps mainly in locomotion. It is in fact a modified part of coelom consisting of a system of canals containing sea water and amoeboid corpuscles.
Phylum Echinodermata: Definition, Characteristics, Classification and Examples
Phylum Echinodermata (Gr., echinos = hedgehog ; derma = skin) is a group of marine invertebrates characterized by radial symmetry, a calcareous endoskeleton, and a water vascular system used for locomotion, feeding, and respiration. Members of this phylum include starfish, sea urchins, sand dollars, and sea cucumbers. They exhibit pentamerous symmetry in adults, have a unique regenerative ability, and possess tube feet for movement and adhesion. Echinoderms are exclusively marine and play essential roles in ocean ecosystems as predators, grazers, and sediment stabilizers.
Pearl Formation in Mollusca
The “pearl” is literally formed by the mantle epithelium which becomes deposited around any external body or particles; these external particles or body invade in between the shell and mantle in any way.