Fill in the table “Comparative characteristics of the main taxonomic groups of birds”.
| October 30, 2020 | Education
| Group name | Characteristic signs | Representatives |
| Cilegrud | typical birds, which have a keel to which muscles are attached to enable flight | Sparrow, magpie, falcon |
| Keelless | Can’t fly | Moa, ostriches, kiwi |
| Floating | They have flight muscles, but they fly in water. | Penguins |
Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.