Both people and insects are animals.But insect haven't bones

Both people and insects are animals.But insect haven't bones in their b________.They have a h________shell.Insects are different from other animals because they have six l________.Many insects have wings.Some insects live alone.Others live in a big groups.Bees and ants live in groups.They live in big families and they have many different rooms in their n______.Insects live on dry places just about everywhere.In hot places,insects are everywhere you see.A few insects,but not too many live in oceans.In very c______ places,like the North Pole(北极),they live in the fur of polar bears and other big,warm animals.Quite a lot of insects live in small rivers and lakes.把空格补充完整.