First of all, living things must adapt to the environment. The so-called survival of the fittest, such as dinosaurs, died out because of the cold climate and lack of food. Nowadays, many kinds of creatures are affected by human activities, and their homes are greatly reduced.

Second, the environment can choose living things. For example, trees in the north should have cold resistance factors, and plants in the desert should have leaves with low evaporation;

Third, living things will affect the environment. First, the earliest oxygen in the earth's atmosphere is the product of plant photosynthesis. With the increase of oxygen released by algae, a variety of higher animals appeared (dissimilation of breathing oxygen is the main way to get energy).

Due to the intensification of human activities, the concentration of carbon dioxide in the air has increased, which has caused global warming, that is, the greenhouse effect, and the ozone layer on the earth has also been greatly affected and destroyed.

Fourthly, only by living in harmony with the environment and maintaining biodiversity can they be in a stable and balanced state, which is also the goal of harmonious and low carbon that we are advocating at present.