Correct Answer - Option 4 : Spider
The correct answer is Spider.
- Insects are the only invertebrates (animals without backbones) with wings.
- We can easily see that Houseflies, bed-bug, and mosquitoes have wings but spiders do not have wings. Hence, the spider is not an insect.
- Insects belong to the phylum Arthropoda.
- The insect body is divided into three main parts, the head, thorax and abdomen.
- Insects have no internal skeleton, instead, they are covered in an external shell (exoskeleton) that protects their soft internal organs.
- Much of their success results from their ability to fly and colonise new habitats.
- Insects play a very important role in the web of life, in every environment.
- Some of their jobs include pollinating flowering plants, being a source of food for insectivorous animals and assisting in the decomposition of plants and animals.
