Sgrace7909
contestada

Organisms are classified as insects based on their ________________.

A
Method of reproduction

B
Internal and external structures

C
Natural habitat

D
Form of communication

Respuesta :

Avcad0rable

[tex]\sf{Answer :-}[/tex]

  • B. Internal and external structures

Insects breath through openings in the thorax and abdomen called spiracles but mammals breath through mouth or nose .