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Answering on this question it is necessary to say that the smell of a flower as well as its color attracts insects. If the summer look at a flowering meadow, you can see how over every flower curled bumblebees, wasps, bees, butterflies, moths. Moreover, every flower seems to be competing with the other in using of specific features with an aim to attract insects? And not without reason: after all, they not only feed on nectar plants, but also spread the pollen on the legs, pollinating flowers, which over time will grow in fruit. Plants, thus, take care of the extension of its kind. The nature of floral scent – is chemical. Each plant produces a volatile oil – the complex of chemical compounds. They can be finding in petals. At a certain temperature of the substance decomposed and the volatile oil evaporates. That is when we feel the fragrance of flowers. And because of the volatile oils composed of different chemical elements, their combination creates unique to each flower fragrance.
2. There are two main differences between antibiotic and vaccine. Both of them will help to protect our health but in different methods and that is why they have different mechanisms of their action. Discussing vaccine, we should say that it is medicine that is intended to create immunity to infectious diseases. The vaccine is made from weakened or killed microorganisms, products of their life, or their antigens derived genetically engineered or chemically. Saying about antibiotic action, we should mark that some antibiotics have a strong suppressive effect on the growth and multiplication of bacteria and with relatively little damage or no damage to the cells of the microorganism, and therefore are used as medicines;
some antibiotics are used as cytotoxic (anticancer) drugs in the treatment of cancer. And we can say that antibiotics are substances of natural or semi-synthetic origin that inhibit the growth of living cells, often procariotic or protozoa.