Explain a biological phenomenon in life with biological knowledge?

1.In winter, farmers often dig vegetable cellars to store vegetables. Every time they pick up vegetables, farmers always leave the mouth of the cellar open for a while, and only after a while do they go down to the cellar to pick up vegetables to prevent hypoxia!

This is because stored vegetables can also respire, consume oxygen, exhale carbon dioxide, and if effective measures are not taken, accidents may occur in the cellar. 2.When there are seeds stored in the granary, if you look closely, you will see that there are often many small windows open above the granary.

Give the seeds oxygen for the seeds to breathe! Seeds are dormant cells, but let them need to breathe, and severe hypoxia will die. Moreover, it should be kept ventilated, because the seeds will heat up when they breathe, and improper handling can easily cause seed rot and other consequences...

3.If you're an observant and problem-spotting person, have you ever noticed that people who live in dry, cold regions have larger nostrils than people who live in warm, humid environments? (Of course, this is related to the results of long-term adaptation of people in different regions, but also related to genetic factors) This is because the human nasal cavity has the effect of warming air, and the longer the air, the longer the nasal cavity is needed to fully warm the air...

There are also people's ** color , because melanin... Hehe,,There's more than one anymore...

When the temperature of water drops to 0 degrees Celsius, it turns into ice, when the temperature of ice rises, it turns into water, and when the temperature of water rises again, it turns into water vapor.

Summary. The relationship between natural phenomena such as the prosperity and withering of plants and trees, the coming and going of migratory birds, and the climate, is used to arrange agricultural work.

The relationship between natural phenomena such as the prosperity and withering of plants and trees, the coming and going of migratory birds, and the climate, is used to arrange agricultural work.

Apricot blossoms are blooming, nature is preaching, and we must hurry up and plough the land. The peach blossoms seem to imply that they should plant millet quickly.

After the beginning of spring, the earth gradually woke up from its slumber. The snow melts, the plants and trees germinate, and all kinds of flowers bloom one after another. When a cloud with a positive electric disturbance meets a cloud with a negative charge, a large number of electrons shifts to produce electricity, and a large number of lightning bolts are generated.

Why do beans climb up automatically?

Beans will automatically climb upwards because they have a special structure that is different from other plant structures - upward stretching, combined with climbing root cords, they can climb up by wrapping around the branches and leaves of other plants with "rope destroyers", which is a way for them to adapt to complex environments, making their leaves more receptive to sunlight and nutrients.

Here are the five principles of ecology.

1. The principle of material recycling and regeneration. For example: waste-free agriculture, biogas utilization.

2. The principle of species diversity. For example:

Forest ecosystems, grassland ecosystems.

3. The principle of coordination and balance. For example:

Three-North Shelterbelts and Desert Shelterbelts need to be adapted to local conditions.

4. The principle of wholeness. For example: the wholeness of humans and nature, the wholeness of animals and nature.

5. Principles of systematics and engineering. For example: fish and duck farming in rice fields, grazing in grasslands.

The following is the concept of ecology.

1. Ecology is the science that studies the interrelationship between organisms and the environment and their mechanism of action.

1. The survival, activity, and reproduction of organisms require a certain amount of space, material and energy. In the process of long-term evolution, organisms gradually develop special needs for certain physical conditions and chemical components of the surrounding environment, such as air, light, moisture, heat and inorganic salts.

2. The materials and energy required by various organisms and the physical and chemical conditions to which they adapt are different, and this characteristic is called the ecological characteristics of the species.

Second, due to the rapid population growth and the extreme pressure on the environment and resources caused by human disturbances.

1. Human beings urgently need to master ecological theories to adjust the relationship between man and nature, resources and the environment, coordinate the relationship between social and economic development and ecological environment, and promote sustainable development.

2. There is mutual assistance and competition between individuals of the same species;Plants, animals, microecology.

Third, there is also a complex relationship between organisms.

1. In order to meet their own needs, human beings constantly transform the environment, and the environment in turn affects human beings. With the expansion and diversification of the scope of human activities. The relationship between human beings and the environment is becoming more and more prominent.

2. The scope of modern ecological research, in addition to biological individuals, populations and vertical biomes, has been expanded to the complex system of various types of ecosystems, including human society. Several major problems faced by human beings, such as population, resources, and environment, are all studied in ecology.