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Does everyone have a nervous system?
No, not all living organisms have a nervous system. Invertebrates like sponges, jellyfish, and corals lack a nervous system, while all vertebrates, including humans, have a nervous system.
Which animals does not have nervous system?
Sponges do not have a nervous system. They are simple aquatic animals that lack organs and have a decentralized network of cells for coordinating their activities.
What has a nervous system but no brain 1 earthworm 2 hydra 3 cockroach 4 amoeba?
Earthworms and cockroaches have nervous systems but no brain. Hydras have a nervous system consisting of a nerve net but lack a centralized brain. Amoebas do not have a nervous system or a brain.
Does the central nervous system consist of the somatic nervous system?
No. Nervous System is comprised of the Central Nervous System (CNS) and the Peripheral Nervous System (PNS) The PNS is comprised of the Somatic Nervous System and the Autonomic Nervous System The Autonomic Nervous System is comprised of the Sympathetic Nervous System, the Parasympathetic Nervous System and the Enteric Nervous System
The portion of the nervous system away from the central nervous system?
The peripheral nervous system is the portion of the nervous system away from the central nervous system. It consists of nerves that connect the central nervous system to the rest of the body, including sensory and motor neurons. The peripheral nervous system is responsible for transmitting information to and from the central nervous system.
Do starfish have cephalization?
"Cephalization" means that the animal has a defined "head" region in which there is a lot of nervous tissue (such as the brain in humans). Sponges are not cephalized because they do not have defined head region nor do they have a central location for their nervous system. The nervous system in sponges is very loose because their cells generally work more individually as opposed to being commanded by a nervous system.
Does everyone have a nervous system?
No, not all living organisms have a nervous system. Invertebrates like sponges, jellyfish, and corals lack a nervous system, while all vertebrates, including humans, have a nervous system.
Which animals does not have nervous system?
Sponges do not have a nervous system. They are simple aquatic animals that lack organs and have a decentralized network of cells for coordinating their activities.
How would life be with out the nervous system?
Without the nervous system, we would have only primitive, unintelligent organisms such as sponges and jellyfish. There would be no one to post questions or to answer them. This website would fall out of use.
What system do the cnidaria and comb jellies have that sponges lack?
Despite neither jellies nor sponges having central nervous systems, jellies have true tissues. The cells in jellyfish are also bound together, unlike in sponges.
What has a nervous system but no brain 1 earthworm 2 hydra 3 cockroach 4 amoeba?
Earthworms and cockroaches have nervous systems but no brain. Hydras have a nervous system consisting of a nerve net but lack a centralized brain. Amoebas do not have a nervous system or a brain.
Do sponges have blood?
Sponges do not have blood. They do not have a circulatory system either.
What are are not part of sponges?
Sponges, belonging to the phylum Porifera, do not have true tissues or organs, which differentiates them from more complex animals. They lack a nervous system, digestive system, and circulatory system, relying instead on the flow of water through their porous bodies for nutrient intake and waste removal. Additionally, sponges do not possess specialized structures like fins, limbs, or a centralized body plan, which are found in many other animal groups.
What organ system does the brain belong too?
The nervous system The central nervous system
Does the central nervous system consist of the somatic nervous system?
No. Nervous System is comprised of the Central Nervous System (CNS) and the Peripheral Nervous System (PNS) The PNS is comprised of the Somatic Nervous System and the Autonomic Nervous System The Autonomic Nervous System is comprised of the Sympathetic Nervous System, the Parasympathetic Nervous System and the Enteric Nervous System
Do sponges have a support system?
No
What comprises the nervous system?
The Sympathetic Nervous System and the Parasympathetic Nervous System
