Ecology is a science that studies the laws of nature, the interaction of living organisms with the environment, the foundations of which were laid by Ernst Haeckel in 1866. However, people were interested in the secrets of nature since ancient times, had a careful relationship to it. There are hundreds of concepts of the term "ecology"; at different times, scientists gave their definitions of ecology.
The permanent inhabitants of the bottom layers of water in almost every home or public aquarium are catfish. All continents, except Antarctica, participated in expanding the species diversity of these thermophilic, freshwater fish. Approximately 5-7 families included in the catfish order, have catfish in their composition, to which the epithet "aquarium" is suitable.
Molliesia or Pecilia is a genus of viviparous fish (lat. Poecilia), which are part of an extensive family of Pecilia. The name "molliesia" has been preserved as an echo of the former generic name Mollienesia. In English literature, the name of mollies is reduced to "molly". Without exaggeration, it can be said that mullinsias in popularity are in first place among novice aquarists, given the fact that the well-known guppies are also mollies.
Swordsmen are a species of fish that can live in fresh and brackish water. In the biological classifier, they are assigned to the order of carp-like, are included in the family of pecilli fish. In their natural state they live in Central America, in warm rivers and ponds of various origins.The habitat of the swordsmen is wide, but most of all these fish are known as residents of home aquariums.
If you have an aquarium at home, then you are well aware of what gammarus is. Its most popular use is as a dry food for fish, turtles and snails in domestic ponds.All fishermen still know about him, since he is often used as fishing bait. Gammarus is a genus of the higher crustaceans of the gammarid family of the order of amphipods (heteropods).
Man often refers to nature as a consumer. And in our fauna there are such creatures that we only know about from the gastronomic point of view. They are very small, but very healthy and tasty - these are shrimps. We order a seafood dish in a restaurant, we buy them for the holiday for a salad, we eat them willingly, but we know little about them.
Welsh Corgi is one of the funniest dog breeds in the world. The shepherd’s service is the basic mission of its representatives. Interestingly, they are classified as shepherd dogs. This dog is not only a talented universal shepherd, but also a wonderful friend. The history of its appearance has been shrouded in mysteries for many years.
Kivsyaki are terrestrial invertebrates living in many places in the world. There are also individual subspecies that have differences in the volume and shades of the body. Their length often reaches thirty centimeters, but in nature there are smaller individuals. Most often they (for example, Crimean nodules) are observed in the forest, in a place where there are a lot of mushrooms, berries, branches, flowers, fallen leaves and the like.
Meeting with a strange creature with an uncountable number of paws makes people squeamish. Scolopendra penetrates apartments, houses, and amazes people. Questions arise how such a neighborhood is dangerous and what this brisk creature is. Description and features Millipede belongs to the genus of tracheal arthropod organisms.
Description and features This fish was first discovered in the waters of southern Asia on the Hindustan Peninsula in the first half of the 19th century, and was described by the English researcher Hamilton. In the wild, it is found in rivers and streams with a slow, fast, and more often with a moderate course, as well as in flooded rice fields.
Ciliates shoe is a general concept. The name hides 7 thousand species. Everyone has a constant body shape. It resembles the sole of a shoe. Hence the name of the simplest. Still, all ciliates have osmoregulation, that is, they regulate the pressure of the internal environment of the body. Two contractile vacuoles serve for this.
The animal cell is derived from a plant cell. This assumption of scientists is based on observations of Euglena Zelena. This unicellular combines the features of an animal and a plant. Therefore, Euglena is considered a transitional stage and confirmation of the theory of the unity of all living things. According to this theory, man came not only from a monkey, but also from plants.
Description and features Such pigs have an exceptionally good-natured disposition and a peace-loving attitude towards humans. In addition, they, contrary to popular belief about such animals, are very accurate. These cute creatures have the so-called bacon physique. They are distinguished by a squat body, a broad back and an impressive chest.
The Frisian breed is one of the most ancient. The calling card is a wary look and curly hair of the tail, mane. In addition, the friezes are attentive and quick-witted. This allows for special contact with the horses of the breed. The history of the Friesian horse breed is bred in the northern province of the Netherlands.
Description and characteristics of the breed Pigs, man began to domesticate, according to scientists, more than ten millennia ago. This happened in the Middle East, according to other sources - in ancient China. And people did it mainly for the sake of high-calorie nutritious fat and juicy tasty meat. These nourishing foods provided the human body with not only a mineral, vitamins, energy necessary for life, but also high immunity against diseases, serving as a medicine.
Mini pigs bred on the basis of the Vietnamese breed of pigs. Breeders drew attention to her in the 19th century. Vietnamese pigs did not differ in grease, but they were playful, had a gentle disposition and stood out by their small size. Individual individuals did not gain more than 12 kilograms. It was these pigs that were selected for breeding a new breed.
In the class of flagella, living creatures are united, which move with the help of one or more flagella. There are many representatives of this class in nature. This category includes numerous inhabitants of marine and freshwater spaces, as well as those organisms that we used to call parasites.
Nereis is another miracle that Mother Nature gave us. According to one legend, this creature was named after the Greek sea god Nereus, who in his entire life gave birth to fifty nymph daughters of extraordinary beauty. Apparently, the appearance of the worm somehow resembles these mythical characters. But if you increase it many times, then you can immediately recognize in the nereis of the Chinese dragon.
Since ancient times, mankind has paid special attention to such unsightly creatures as the earthworm. And scientists, in the person of Charles Darwin, decades later, for many years studied their structure and significance in agriculture. And not without reason. After all, with the onset of spring heat, earthworms begin painstaking work and work without knowing it, for the benefit of people.
It is very difficult nowadays to remain evenly calm. Time flies, life boils, we are constantly in a hurry somewhere, we have no time. And so there is not enough five-minute rest to sit down, relax, drink a cup of herbal soothing tea and not think about anything. Someone listens to relaxing music, someone meditates.