Not all animals have complex nervous systems. In fact, most lower animals don't even show an organized nervous system. Its only in higher animals like chordates that a proper organized nervous system is seen.
While many animals without specialized nervous systems, such as certain invertebrates, tend to be small and mobile, this is not universally true. Some larger organisms, like jellyfish and sponges, also lack complex nervous systems but can exhibit various forms of movement or remain largely stationary. The size and mobility of these animals are influenced by their ecological niches and evolutionary adaptations rather than solely by the absence of a specialized nervous system.
No. There are animals without any nervous systems, like sponges.
no
The nervous system
The nervous system connects to all other systems of the body. It acts as the control center by telling the other systems what to do.
All other systems inteact with the nervous system.
No,they do Work with all the body system
No, muticellular.
Squids' and octopi's nervous system are the most advanced of all invertebrates
All animals have bones.
No, not all living things are complex. Some living organisms, like bacteria and single-celled organisms, are relatively simple in structure and function compared to more complex organisms like plants and animals. Complexity in living things can vary greatly depending on the species and their evolutionary history.
All mammals have a similar nervous systems. They are like humans, dogs, cats, mice, and rhinoceros.