(Note): There are two things to pay attention to in this article.
First, the author of this article is just a simple analysis and popularization of the content about the topic of this article. Second, if you want to know more, please see the relevant information published by other authors.
Ocean
Let’s first popularize the basic knowledge about water.
We all know that water is an important part of organisms. Many animal tissues contain more than 80% water content, while jellyfish , a type of marine organism , has a water content of up to 95%. Water is an important medium for the metabolism of all living things. Without water, a series of physiological and biochemical reactions in the organism cannot proceed (continue), and life stops. Therefore, in a short period of time, animals are more dangerous than food shortage. How important is water to life today. In fact, it plays a vital role in fragile primitive life.
Next, I will officially start to popularize the topic of this article.
Clear sea water
When life is born in the ocean, there will naturally be no worries about water shortage.
Water is a good solvent. Seawater contains many inorganic salts necessary for life, such as sodium chloride , potassium chloride, amortized acid, nitrate , phosphate , and dissolved oxygen. Primitive life can effortlessly draw the elements it needs from the water.
The earth is made of water
Water has a very high heat capacity, and the water body is huge, allowing the scorching sun in summer and the cold wind in winter to sweep away, but the taste of sea water changes relatively little. Therefore, the huge ocean is like a natural thermostat, a hotbed for primitive life.
Although sunlight is necessary for life, the ultraviolet rays in the sunlight are at risk of killing primitive life. Water can effectively absorb ultraviolet rays, thus providing a natural barrier to primitive life.
All of these are necessary conditions for the emergence and development of primitive life.
Just as flowers in greenhouses cannot withstand wind and rain, the superior marine environment also limits the development of organisms in a higher direction.
Storm on Earth
Advanced animals and Advanced plants were born on land. Reptiles, birds, and mammals are the original marine fish that gradually evolved after they moved to land. Land plants evolved from marine algae .
This process of moving to land is likely to be forced.
Land overlord dinosaur
Because of changes in the earth's crust and climate change, some oceans have become land, forcing some aquatic plants to adapt to the new environment. The specific gravity of air is very small and cannot float the body of the plant like sea water. Therefore, land plants gradually differentiate into roots, stems, and leaves. The roots drill into the soil to absorb nutrients and moisture, the leaves absorb sunlight in the air for photosynthesis, and the stems play a role in connecting and supporting the plant body.
original forest diagram
Land animals gradually evolved into their limbs to adapt to running on land. Due to the dry land climate and large temperature changes, land animals have evolved dense skin and heat-insulated hair. In short, the hard environment on land has trained organisms, making their body structure more refined, more complex and more perfect.
In today's oceans, in addition to fish, there are also some higher animals living there, such as sea turtles , sea snakes and other reptiles, whales, seals and other mammals. marine plant In addition to the lower algae , there are also higher plants. These higher animals and plants return to the ocean from land.
Conclusion: In fact, the evolution and degeneration of animals and plants is entirely to continuously adapt to the new environment. Only by living better on this earth. (Please click on my avatar to see all the content I posted, thanks for the support.)
