what characteristics separate the class insecta from other classes of the phylum arthropoda?

1. Only insects have wings 2. Insects have six legs 3. Only insects undergo metamorphosis 

1. Only insects have wings
2. Insects have six legs
3. Only insects undergo complete metamorphosis
4. Insects have 3 distinct body sections
5. Insects have antennae
6. Insects have external mouthparts
7. Only insects have compound eyes
7 is the lucky number- if it meets at least 3 of these criteria, it is definitely an insect.

Holozoic nutrition refers to the regular animal nutrition mode whereas saprophytic nutrition refers to the nutrition mode of fungi and bacteria.

To kill bacteria from our body especially from stomach