The performance of plant adaptation to the environment, the plants with the strongest adaptability t

For example, plants in the desert often have needle-like leaves to reduce water loss, such as cacti; Plants also show adaptation to the environment during pollination and fertilization, flowers will grow into insects or easily blown away by the wind, and their offspring will continue when they come, and the evolution of plants is to adapt to environmental changes.

For water-raising plants and ascites plants, the leaf intercellular space is developed or the proportion of spongy tissue is larger. For submerged plants, the leaves are generally thin epidermal cells, with thin or no cuticular membrane, and no stomata and epidermal hair, but epidermal cells contain chloroplasts; The mesophyll tissue is underdeveloped, the layers are few, there is no differentiation of palisade tissue and sponge tissue, the intercellular space is particularly developed, and the ducts and mechanical tissues are underdeveloped, such as eye cabbage Reference: Plant Biology Zhou Yunlong, editor-in-chief.

Plant adaptation to the environment refers to the active response and positive adjustment of biological characteristics such as morphological structure, physiological mechanism, and genetic characteristics in order to cope with the environmental conditions faced by plants in the process of growth and development and phylogeny. Adaptation is a result, and extant plants are the result of adaptation to the environmental conditions of the time that have been passed down from generation to generation over hundreds of millions of years. The plants that have survived have shown to a certain extent that:

It transcends the challenges posed to it by the environment, and its morphological structure, physiological and biochemical functions, molecular biological mechanisms, and even its individual characteristics, as well as its behavior in populations, communities, and ecosystems, are all appropriate for this ecological environment. Adaptation is also a process, and any plant, whether it is an individual or a group, needs to respond to its environment and respond positively at any time and place, which is the only way for life to sustain its existence and development. Adaptation is also a biological phenomenon that occurs at the population level, and the more adaptable individuals are in a population, the greater the proportion of their offspring in the population.

Adaptation is relative, any plant's adaptability to environmental factors has a certain boundary, the minimum dose that can tolerate an environmental factor is the lower limit critical point, the maximum dose of tolerance is the upper limit critical point, and the environmental factor status when the plant is most suitable is the optimal point, which is the "three base points" of the plant, and the environmental range between the upper and lower limits of plant adaptation is the range of plant adaptation, also known as the ecological amplitude of the plant, and the environmental area between the ecological amplitude is the distribution area of the plant.

The competition for survival in the animal kingdom is very fierce, and some animals have developed a lot of incredible skills in order to survive, some of them have very strong environmental adaptability, and some have a very long lifespan.

That must be angiosperms, angiosperms are the most differentiated and distributed in different habitats, while ferns are mainly distributed in hot and rainy places, while bryophytes can only be distributed in humid places, and gymnosperms are not competitive in the tropics.

There are phototropic, hydrotropic, and backlight.

Whether it's at the equator in the hot sun, or in the mountains or polar regions, one can find traces of plants. You may ask: why are these plants so powerful? How do they adapt to the rigors of the environment?

The Qinghai-Tibet Plateau is known as the "Roof of the World" where the cold wind howls all year round, dripping into ice, and even in summer it is a world of ice and snow. However, there is one plant that can fight the snow and grow on the cliffs there. The flowers of this plant are very beautiful, with more than 10 large bract leaves, and the petals are surrounded in a circle, caring for the purple-red flowers of **, which is the snow lotus that is not afraid of the cold.

Why can Snow Lotus thrive in such a harsh environment? It turns out that living in the ice and snow for a long time has cultivated a set of excellent cold resistance skills. Snow Lotus is not tall, and its body seems to grow on the ground, so that it can resist the strong winds in the high mountains.

It has a thick white fur that protects it from the cold, moisturizes the fork, and reflects the strong solar radiation in the high mountains. The roots of the snow lotus are thick and soft, and they are flexibly interspersed.

Between the rocks, can be sufficient.

Absorbs water and inorganic salts.

Covered with snow in the Bering Strait.

Cover the coast, there is one more.

Peculiar rhododendrons. This flower.

It's simply a mythical strange flower, which can "clean" the snow around you.

Clean, then bloom. What's going on? It was found that this grows in the far north.

of rhododendrons that absorb sunlight.

and then dissipate the heat to melt the ice and snow around you.

A lot of plants can not be salted.

Survive on alkaline ground. When in the soil.

After the salt content is reached, Xu.

You can't survive with more plants. Correct.

Plants such as poplar, tamarix, and petal scale flowers, on the other hand, are unique and thriving on saline soil. These salty and immortal plants will show their magic when resisting salinity.

The stems and leaves of plants such as poplar and tamarix are densely covered with salt-secreting glands, which emit droplets of liquid that excrete excess salt absorbed in the saline soil, as if a person were sweating.

The petal scale flower dissolves the absorbed salt in its own body and secretes it through the surface of the leaves. When the water dries, the salt crystals remain on the leaf surface and scatter when the wind blows. Other plants are born resistant to salinity, and their roots absorb little or no salt, which can "keep the salt out".

In the desert cactus, the leaves evolve into thorns, reducing transpiration and reducing water loss in the plant.

Ginkgo biloba trees are adapted to the fertile sandy soils of central China, in sunny shelters. If it is transplanted to the cold regions of the northeast, its growth and development will be inhibited.

In fact, strictly speaking, on this earth, almost any living thing that can still survive normally is adapted to the environment, and plants are certainly no exception.

For example, any higher plant can transpirate by evaporating water to provide it with the pull to transport inorganic salts and water.

Cacti live in deserts due to lack of water, and the leaves become needle-shaped, and the same is true for pine trees, and many trees that live in water grow many aerial roots on their stems due to the lack of oxygen in the water to help them breathe.

Too much!

Camel thorns have long roots and adapt to the desert environment, and lotus and lotus leaves are spread on the water surface to get more light and better photosynthesis. Many trees that live in water have a lot of aerial roots on their stems due to the lack of oxygen in the water to help them breathe.

Too much!

Canadian goldenrod, water hyacinth, dogtail grass - wolf's tail grass.

Hello! Root the description of your question, why plants and different environments have different ways of adapting, and the existing organisms are adapted to the isolated environment. Plants in different environments have the characteristics of adapting to the environment.

There is little oxygen in the water, and aquatic plants generally have wide leaves, well-developed leaf veins, stems, and aeration tissues. Desert water is scarce and arid, desert plants generally have well-developed root systems and small leaves, such as cacti, which reduce the evaporation of water, and the stems are fleshy and store water. On land, the upper layer of the forest is made of trees, the middle layer of shrubs, and the strata of herbaceous trees, so that the sunlight can be fully utilized.

Vegetation grown in a humid environment generally has larger leaves and smaller roots (enhancing transpiration and reducing water uptake by roots); Camel spines that live in arid regions, with very short stems and leaves above ground (to conserve water), but very large underground root systems (to absorb groundwater); Trees in tropical rainforests have huge tabular root systems (which support the canopy and absorb nutrients from the topsoil); The mountains are windy, and many trees grow close to the ground;

The leaves of the cactus turn into thorns, reducing transpiration and adapting to the arid desert environment.