ANY infected animal can spread diseases. Any mammal can carry rabies; most varieties of insect carry various viruses.
There are purple insects. Like beetles...
only insects from the animal group.
jackal jaguar jellyfish
That is impossible, many insects have not been discovered. In general, insects all have 6 legs.
Humans do not have any insects, neither do other animals (except insects).
The most populated animal more than humans are ants
Harmful insects are insects that are harmful in any way to plants, animals or humans. There are many ways in which insects can be harmful to the above; insects such as locusts can form huge swarms that can destroy whole crops in minutes. Other insects can pierce a leaf or stem of a plant and suck out its juices, leaving the plant to wither and die. Various types of insect carry diseases such as malaria and encephalitis which leave many children in developing countries orphaned and many parents childless.
No, they mainly eat plants. They do not eat any other animals.
They can. Any animal can carry bacteria, and infect other animals with it.
any insects they'd eat
There are more insects than any other animal on Earth.