This chapter contains recommendations on basic knowledge about how living things work and how they interact with each other and in their environment. The chapter focuses on six main themes: the diversity of life, which is reflected in the biological characteristics of terrestrial organisms; Transferring airy properties from one generation to the next; The structure and functioning of cells, the building blocks of all organisms; The interdependence of all organisms and their environment; the circulation of matter and energy through the great cycles of life; and how biological evolution explains the resemblance and diversity of life. Biological evolution affects changes in living things during the history of life on Earth. He explains that living things have common ancestors. Over time, evolutionary change leads to new species. Darwin called this process « downhill with change, » and it remains a good definition of biological evolution today. The work of the cell is carried out by the different types of molecules it assembles, mainly proteins. Protein molecules are long, mostly folded chains of 20 different types of amino acid molecules. The function of each protein depends on its specific sequence of amino acids and the shape that takes the chain as a result of attractions between parts of the chain.
Some composite molecules help replication of genetic information, repair cellular structures, help other molecules enter or exit the cell, and generally catalyze and regulate molecular interactions. In specialized cells, other protein molecules can carry oxygen, cause contractions, react to external stimuli, or provide material for hair, nails and other body structures. In other cells, composite molecules can be exported to serve as hormones, antibodies or digestive enzymes. No no. Children`s personal opinions should not have an impact on their grades. Students are not obliged to accept evolution. A note reflects a teacher`s appreciation of a student`s understanding. If a child does not understand the fundamental ideas of evolution, a class could and should reflect this lack of understanding, because it is quite possible to understand things that are not believed.