answersLogoWhite

0

Starfish, or sea stars, lack a brain and central nervous system. They do have a nervous system that can sense things like orientation, touch, temperature and light.

User Avatar

Wiki User

11y ago

What else can I help you with?

Continue Learning about Zoology
Related Questions

What is a group of drugs that depresses the activities of the central nervous system?

Barbiturates. Also, benzodiazepines, when administered in significant dosages.


What is the purpose of central nervous system stimulants?

Central nervous system stimulants are used to keep patients who suffer from narcolepsy from falling asleep. Narcolepsy is a disorder that causes people to fall asleep during daytime hours.


What drug category is Dexedrine classified as?

Dexedrine is classified as a central nervous system stimulant. Central nervous system stimulants vary in strength, but all cause an increase in wakefulness and concentration; they are used for treating ADHD and narcolepsy.


What body system processes and analyzes information?

The nervous system processes and analyzes information received from the body's sensory receptors. This information is then used to initiate appropriate responses or actions to maintain homeostasis and respond to the environment.


Is Barbiturates are depressants and are widely used to decrease central nervous system activity is that true or false?

true


What is a group of drugs that slow down the central nervous system cause drowsiness and can be used as painkillers?

Opiates.


How can herbs help cluster headaches?

Nervous system relaxant herbs, used singly or in combination, can allow the central nervous system to relax as well as assist in peripheral nerve response.


Which of the following is a legal prescription central nervous system stimulant that is also sometimes abused?

Central nervous system (CNS) stimulants are drugs that increase activity in certain areas of the brain. These drugs are used to improve wakefulness in patients that have narcolepsy.


What is the basic unit of structure and functon of the nervous system?

The nervous system is used to trasmit information around the body. It is made of two systems: the central nervous system (which consists of the spine and brain) and the peripheral nervous system (which consists of neurones and receptors). There are three types of neurones: sensory neurones, relay neurons, and motor neurones.


What is a cerebrospinal fluid analysis used for?

The purpose of a CSF analysis is to diagnose medical disorders that affect the central nervous system.


Neurotransmitter used to cause muscle contraction?

A neurotransmitter that causes muscle movement is called Acetylcholine. Acetycholine acts as on both the central nervous system and the peripheral nervous system.


Do psychotropic drug acts primarily on the central nervous system?

A psychotropic drug acts primarily on the central nervous system (CNS), where it produces temporary changes affecting the mind, emotions, and behavior. These drugs are used as medications to control pain, and to treat narcolepsy and attention disorders.