How to deal with adverse environmental conditions

In order to talk about how to deal with adverse conditions, it is important to understand what is meant by this definition.

Unfavorable natural conditions

Under them it is customary to mean insufficientthe amount of moisture, drought, lowering of the oxygen content in water, the minimum amount of light. All these problems lead to the fact that the normal vital activity of organisms is disrupted. The fight against unfavorable conditions is conducted in order to solve similar problems.

Dangers of unfavorable conditions

At low ambient temperaturesthe risk of death of earthworms, moles, other organisms whose habitat is the soil is increased. In the case of insufficient amounts of oxygen dissolved in water, fish and aquatic animals are killed. If the seeds of plants fall under wind gusts in unfavorable conditions for their life, they do not germinate.

If organisms do not adapt in new conditions,they will not give full-fledged offspring. Variability is a property that exists in all living organisms. Modificational variability is a property of the organism under the influence of external environmental conditions to change its characteristics. If there is a change in chromosomes and genes, then this is mutational variability.

Mutation Features

A timely and effective struggle againstUnfavorable conditions make it possible to prevent modification variability. The formation of the phenotype of a living organism is characterized by the interaction of its heredity - the genotype - with the conditions of the external environment. Even with the same genotype, but under different conditions of development, there may be significant differences between the signs of the organism.

Due to the modification variability manyIndividuals increase their adaptability to the external environment, which is of particular importance for the prosperity and preservation of a particular species. The fight against unfavorable environmental conditions is aimed at preventing mutations. They are the variability of some organisms, which is caused by serious changes in the genotype.

For many centuries there has been a continuousnatural selection in living nature. Only in those organisms that adapt to changes in nature, there are new signs. Between the environment and organisms, unity (mutual relationship) is created. Darwin singled out natural selection as the main factor for the reproduction and conservation of individuals, maximally adapted to changes. Fighting unfavorable conditions is the only way to preserve certain types of living organisms.

Conclusion

The question of the conservation of differentspecies of living organisms, is relevant, allows us to explain many natural phenomena. How is the fight against unfavorable conditions? The examples given below make it possible to explain its specifics. In the mountains it is cold in winter, in the summer here winds are constantly blowing. Because of them the soil is dried, the content of moisture in it decreases. Therefore, in mountainous areas only squat, low plants and shrubs grow.

Branches of shrubs are located on the ground, toThe animals are pressed to the stones, the birds sing, sitting at the surface of the earth. Spiders in the mountains do not make a full web, they try to hide under the pebbles, in old burrows. Despite the development of plant roots, they have thin leaf blades. Snow accumulates between the stems of the plant, so that in spring it will receive the amount of water necessary for growth and development. With additional moistening of the roots, improvement of soil quality, mountain plants develop in full, and have a quite presentable appearance.