Question

What is entomology?

Answer 1

The term entomology is derived from the combination of two greek words entomon and logia, which mean insect and the study of respectively. It is often regarded as a sub branch of zoology which is a comprehensive study of animals as a whole.

Complete answer:
Entomology is that branch of science which deals with the study of insects. Quite a million different species of insects are described so far by the biologists. They're the most abundant group of animals on Earth and they are found in almost every habitat. Insects have lived on earth for quite 350 million years.
We need to study insects in particular because of the following reasons:
1. Insects are vectors of the many serious human, animal and plant diseases across the planet. Understanding the biology of insects is vital to understanding the diseases that they carry and spread.
2. Over a million living species in the world are insects. If you’re curious about global or local biodiversity then insects have to be studied.
3. Insects are around for over 350 million years and have evolved solutions to several physical and chemical problems. The more understanding we've of insects, the more we will put that understanding to use.
4. Insects are beneficial as pollinators and decomposers as well as detrimental as pests and vectors of plant diseases.
5. More species of insects have had their genome sequenced than the other group of multicellular organisms. Insects are a superb model for studying the molecular basis of life.
6. Insects are everywhere. regardless of where you reside within the world or what language you speak, you'll inherit contact with insects.

Note:
The science of entomology is further divided into several categories, such as:
Coleopterology – beetles
Odonatology – dragonflies and damselflies
Dipterology – flies
Hemipterology – true bugs
Lepidopterology – moths and butterflies
Isopterology – termites
Myrmecology – ants
Melittology (or Apiology) – bees
Trichopterology – caddisflies
Orthopterology – grasshoppers, crickets, etc.
Vespalogy – Social wasps