Plz plz define all the keywords in very short way plz plz write fast
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algae Algae is an informal term for a large, diverse group of photosynthetic eukaryotic organisms that are not necessarily closely related, and is thus polyphyletic.
2 antibiotics An antibiotic is a type of antimicrobial substance active against bacteria. It is the most important type of antibacterial agent for fighting bacterial infections, and antibiotic medications are widely used in the treatment and prevention of such infections. They may either kill or inhibit the growth of bacteria.
3 antibody (Ab), also known as an immunoglobulin (Ig), is a large, Y-shaped protein produced mainly by plasma cells that is used by the immune system to neutralize pathogens such as pathogenic bacteria and viruses. ... The production of antibodies is the main function of the humoral immune system.
4 very small living things that can only be seen with special equipment (a microscope). Bacteria exist in large numbers in air, water, soil, plants and the bodies of people and animals. Some bacteria cause disease