Modern science divides all of nature into animate and inanimate. At first glance, this division may seem simple, but sometimes quite difficult to decide whether a particular natural object is really alive or not. Everyone knows that the basic properties, characteristics of living – growth and reproduction. Most scientists use seven life processes or characteristics of living organisms, which distinguish them from inanimate nature.
All beings
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What are the key attributes of a living organism? First of what makes living organisms unique is that they all consist of cells, which are considered the building blocks of life. Cells are amazing, despite their small size, they can work together, making this large body structures like tissues and organs. Cells are specialized - for example, liver cells are in the same body and brain cells function only in the head.
Some organisms are made of just one cell, for example, many bacteria, while others are composed of trillions of cells, e.g., human. Multicellular organisms are very complex beings, unique cellular organization. This organization began as a DNA and stretches across the entire body.
The Main features of living things (biology describes it even in the school course) include also such a thing as reproduction. How all living organisms fall to the Ground? They do not appear out of thin air, but by reproduction. There are two main ways of producing offspring. First – all known sexual reproduction. This is when organisms produce offspring by combining their gametes. People and many animals fall into this category.
The Other type of reproduction is asexual: organisms produce offspring without gametes. Unlike sexual reproduction, where offspring have a different genetic makeup, not like any of the parents, asexual method produces offspring that are genetically identical to its parent.
The Main features of living things also imply growth and development. When the offspring is born, it does not stay like this forever. An excellent example may be the man himself. In the process of growing people change, and the more time that passes, the more these differences are noticeable. If compare adult man and child, whom he once came to this world, the difference is just enormous. Organisms grow and develop throughout life, but these two terms (growth and development) do not mean the same thing.
Growth - when changing size from small to large. For example, with age grow all the organs of the living body: fingers, eyes, heart and so on. Development implies the possibility of change or transformation. This process begins before birth, when pojavljaetsja the first cell.
The Growth, development, cellular processes and even reproduction can happen only if the organisms can take and use energy, which is also included in the basic signs of a living being. All of life's energy ultimately coming from the sun, and this force powers everything on Earth. Many living organisms such as plants and some algae use the sun to produce their own food.
The Process of converting sunlight into chemical energy is called photosynthesis and the organisms that are able to produce, are called autotrophs. However, many organisms cannot create their own food on their own, so they have to eat other organisms for energy and nutrients. Organisms that eat other organisms are called heterotrophs.
Listing the basic signs of wildlife, it is important to note the fact that all living organisms possess the ability to react in a certain way to various stimuli of the environment. This means that any changes in the environment trigger specific reactions in the body. For example, carnivorous plants like the Venus flytrap, bloodthirsty, close their petals rather quickly, if there will land the unsuspecting fly. If possible, the turtle will bask in the sun and will not remain in the shadows. When a person hears the rumbling in my stomach, then he goes to the fridge to make a sandwich, and so on.
Stimuli can be external (outside the human body) or internal (inside the body), and they help living organisms to maintain balance. They are presented in the form of various sense organs in the body, such as: sight, taste, smell and touch. The speed of response may vary depending on the organism.
The Main signs of living organisms include regulation of the internal environment called homeostasis. For example, temperature regulation is very important for all living beings, because the temperature of the body is affected to such an important process, as metabolism. When the body becomes too cold, these processes slow down and the body can die. The opposite happens when the body overheats, the processes are accelerated, and all this leads to the same disastrous consequences.
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Alin Trodden - author of the article, editor
"Hi, I'm Alin Trodden. I write texts, read books, and look for impressions. And I'm not bad at telling you about it. I am always happy to participate in interesting projects."
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