What is an organism? Detailed answer

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What is an organism? Detailed answer

Big encyclopedia for children and adults

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What is an organism?

Scientists speak of all living beings as organisms. Man is also an organism, just like a mouse, a fish, an insect, a tree, a camomile, and so on. Organisms include bacteria and other tiny creatures. All these creatures have some common features. For this reason, scientists use the word "organism" to group together all living beings.

The word "organism" suggests that all these creatures are organized phenomena, that is, all their parts are arranged in a certain way and perform their function as part of the whole. To be considered alive, substances must be active. The activity of an organism can be chemical and occur within it.

Chemical activity is a constantly ongoing process. Without it, the body cannot live. Energy must be constantly supplied to the body so that it does not stop its activity. An organism is made up of matter and has its own form. Obsolete matter is constantly replaced by new. The exchange of matter and energy within an organism is called metabolism.

The organism grows until it reaches its full size. It must reproduce itself, that is, the old organisms must be replaced by new, young ones. Therefore, we can say that the organism is alive while it grows, reproduces and metabolism takes place in it.

Author: Likum A.

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Probiotics and pregnancy 03.02.2018

Milk with probiotics helps to avoid two serious problems that pregnant women often face at once: these are premature births and preeclampsia (the so-called form of late toxicosis during pregnancy, when blood pressure rises very much and protein appears in the urine).

Employees of the Sahlgrenska Academy at the University of Gothenburg, together with colleagues from other research centers in Sweden and Norway, analyzed medical statistics relating to approximately 70 pregnant women who participated in a long-term medical study. As part of this study, women were asked how they felt, what they ate and what they did before pregnancy and at different stages of pregnancy.

Probiotic milk is generally very popular in Norway, with about 23% of women reporting that they drank probiotic milk before pregnancy, another 38% that they drank it until the thirteenth week, and another 32% that they drank probiotic milk during late pregnancy. that is, between the thirteenth and thirtieth weeks; the average portion was one and a half cups a day.

Milk was accompanied by a clear beneficial effect, but everything depended on the stage of pregnancy. For example, the likelihood of preeclampsia was reduced by 20%, but only when probiotics were taken late in pregnancy. On the other hand, the chance of preterm birth (that is, before 37-1 weeks) was reduced by 21% only when probiotic milk was drunk during early pregnancy.

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