Living organisms can be divided into two main groups, i.e. plants and animals. Animals can be divided into two main sub-groups. Animals without backbones are called (1) _______ and those with backbones are called (2) _______.

Keep practicing — related questions

• Snails, beetles, worms, jellyfish, octopuses etc. are animals without backbone. They are called as ____.
• All animals can be fundamentally classified into two main groups known as the vertebrates and the invertebr...
• Lower animals are called invertebrates because _____________.
• All the animals can be divided into _______ groups on the basis of their food habits.
• All the animals can be divided into ______ groups on the basis of their food habits.
• vertebrate
• An animal is a _________________________ organism
• How do animals, fishes and plants live without air, under water?