-
In the process of plant evolution, survival of the fittest and survival of the fittest. With the cross-section are other shapes, such as squares, triangles.
The rhombus shape is rounded compared to the cross-section of the rhizome, and the plant is resistant to natural disasters.
Characteristics of strong ability: 1It has a strong resistance to breaking
It can meet the strong winds blowing from all sides. 2.The distance from the center of the cross-section to its surroundings is about the same, allowing for the rapid delivery of nutrients and water.
It is more conducive to plant growth. So the cross-section of the rhizome of most plants is round!
-
The cross-section of the plant's stem is rounded, which reduces damage, has greater mechanical strength, and can withstand the attack of wind. At the same time, due to the influence of wind, the degree of bending of plant stems is similar everywhere, regardless of which direction the wind comes from, the resistance of plant stems is similar, and plant stems are not easily damaged.
Also, the stems of the plant are relatively soft and can be shaken by the wind, so it is not easy to break.
-
The cross-section of the rhizome is round, also because it maximizes water absorption!
-
1. Because of the cylinder.
The ability to resist breaking is relatively strong, and because the arc shape relieves the pressure of the oncoming wind, it can meet the strong wind blowing from all directions.
2. Because the distance from the center of the circle to the surroundings is about the same, it can facilitate the delivery of nutrients faster.
-
The cross-section of the rhizome is round, which ensures that the ducts and sieves in the rhizome are evenly distributed, ensuring that the nutrient content of the stem is the same, and promoting the normal growth and development of the plant. It can also increase the supporting force of the plant, as well as relieve the pressure of the air, and avoid the phenomenon of bending and deformation, damage and planting of the plant.
The reason why the cross-section of the rhizome of the plant is round.
The cross-section of the plant rhizome is round, which can ensure that the growth of the ducts and sieves in the rhizome of the plant is evenly distributed, and the number can be guaranteed to be about the same, and it can also increase the ability of the plant root system to absorb soil nutrients, as well as the ability of the stem to transport water and nutrients, which is conducive to better growth of the plant.
The cross-section of the rhizome of the plant is round, which can greatly increase the supporting force of the plant, ensure that the plant can play the role of support after growing fruit, and will not cause the stem to bend and deform due to the action of gravity, which will cause damage to the stem of the plant, easily infect the germs in the air, and affect the growth of the plant.
The cross-sectional area of the rhizome of the plant is circular, which can alleviate the air pressure caused by the wind, ensure that the plant can grow normally in the windward situation, and is not easy to be blown down by the wind, and the phenomenon of bending and growth of branches will not occur, hindering the normal process of transporting nutrients to the stem, resulting in malnutrition in the growth of the plant.
situation. The cross-section of the rhizome of the plant is round, which can ensure that the stem transports the same content of nutrients and water, because the distance from the circle to the center is the same, it can ensure that when the plant grows, the size and shape of the leaves, the thickness of the branch is the same, so as to ensure the neat and symmetrical plant shape and improve the ornamental value.
-
The vast majority of roots and stems are rounded in cross-section, as this ensures that the number of ducts and sieves is evenly distributed, and the ability of the stem to transport water and nurture the herbs is enhanced. This also provides some support and prevents the branches from bending. In addition, it relieves the pressure of the wind and ensures the normal growth and development of the plants.
The cross-section of the rhizome is round, which can promote the uniform distribution of the number of ducts and sieve tubes in the rhizome of the plant, ensure that the stem of the round plant has a stronger ability to transport water and nutrients, promote the better growth and development of the plant, and ensure that the nutrients transported by the plant can reach the leaves of the whole plant.
When the plant is full of fruits, the cylindrical stem can play the role of support, avoiding the effect of gravity, resulting in the phenomenon of bending the branch of the plant, and even causing the branch to be damaged, affecting the efficiency of plant fruit.
The round cross-section of the rhizome can relieve the pressure of the wind, ensure that the plant can grow in hail and wind, will not be bent or blown down by the wind, and will not cause the branches of the plant to grow twisted due to the wind in different directions, which can not ensure the normal growth and development of the plant, and will also affect the ability of the root system to absorb nutrients.
When the cross-section of the rhizome is round, the distance to the center is the same, and the speed and quantity of water and nutrients are the same, which will not lead to the growth of the plant, the leaf size and shape are different, and the length and thickness of the branches are different, which will greatly affect the appearance of the plant.
-
The vast majority of plants have a round cross-section of roots and stems for the reason:
1. Because the cylinder has a strong ability to resist breaking, it can meet the wind blowing from all directions because the arc shape relieves the pressure of the oncoming wind.
2. Because the distance from the center of the circle to the surroundings is about the same, it can be convenient to transport nutrients faster in the wild.
High oxygen levels In prehistoric times, the oxygen content of the atmosphere reached more than 30% (Carboniferous), which is much higher than the oxygen content in the air today (21%), so the individual animals were larger than they are now. The reason why the oxygen content is so high is that there were many plants and few animals at that time, and there were giant dragonflies, giant centipedes, etc. in the Carboniferous period, and some of the arthorax genera were even 3 meters long. Gravity used to be smaller and farther from the sun. >>>More
Soil is just one of the media that meets the above three plant growth conditions, and the principle of soilless cultivation technology developed in modern times is to meet the above three conditions of the medium to cultivate plants and replace soil, for exampleAsbestos, vermiculite, etc. In nature, only soil is the most widely distributed and most common medium that meets the above three conditions, so most plants grow in soil. >>>More
In order to survive, all living things in the world always develop towards the most adaptable aspect of the environment, and the same is true for plants, whose stems are cylindrical (conical) and need for their own growth and reproduction. >>>More
This is the result of biological evolution and natural selection in nature. Because the spherical fruit is more tolerant of wind and rain. The shape of the exterior is round, and the force of wind and rain is relatively small; In addition, the spherical fruit surface area is small, the evaporation of the fruit surface is small, and the water dispersion loss is less, which is conducive to the growth and development of fruit fruits. In addition, the small surface area makes the pest have fewer places to stand, and the chance of getting the disease is less, and the survival rate is higher. >>>More
The main reason is that men have excessive male hormone secretion, and there are genetic factors.