What are two characteristics that scientists use to differentiate insects?

3 main tagmata. Insect bodies are divided into three main parts: head, thorax, and abdomen. The thorax is where all the legs and wings are attached.

Gas exchange organs: Tracheae. The tracheal breathing system is one of the key adaptations enabling insects to live on land. Some insects have aquatic larval forms, which have gills

haploid cells;

satellites are frequently used to make observations of the orbit on earth