Question

Which of the following features is common to all animals without any exception?

• A. Locomotion
• B. Specialised nervous system
• C. Multicellularity
• D. Herbivorous mode of nutrition

Answer 1

The correct option is A Locomotion

• Locomotion is the active movement i.e. with consumption of energy shown by all organism. Need, type and extent of locomotion differ from organisms to organism based on their organisation.
  
• The specialised nervous system is seen in only organisms with organ system level of organisation.
  
• Several organisms are unicellular, hence multicellularity is not a common feature of all organisms.
• All organisms differ in their mode of nutrition. They can be autotrophic or heterotrophic. If heterotrophic, they can be herbivores, carnivores or omnivores.
• So, the correct option is 'Locomotion'.