The sponge is one of the most primitive of all animals. They do not move and live by filtering the debris from the water. They don't have a brain, and for that matter, they don't have neurons, organs, or even tissues. 12th. 2009
How does a sponge live without a brain?
The brain needs a lot of energy, and many of these simple creatures could not survive if they had to supply energy to the brain. In the case of sponge, there is no brain, digestive system, nervous system, or circulatory system. They simply filter the water for nutrients that have a finger-like structure called cilia.
Does the sponge have a heart?
In summary, sponges (or sponges) do not have a true circulatory system like most animals. There are no hearts, veins, arteries, and no blood on the sponge. .. Water is drawn into the sponge through the inner choanocytes, and the inner choanocytes take in water from the outer pores of the sponge.
Do sponges have emotions?
Sponges do not have the nervous system or organs like most animals. This means they do not have the ability to feel the eyes, ears, or anything physically. .. Since the sponge has no nerves or brain, it does not have the ability to cognitively control movement.
What's in the sponge instead of the nervous system?
Sponges are the only multicellular animals without a nervous system. There are no nerve cells or sensory cells. However, touching or applying pressure to the outside of the sponge causes the body to contract locally. Hydra has a nervous system that is characterized by a neural network.
Below you will find two helpful answers on a similar topic. 👇
Do animals without a brain feel pain?Which animal has no brain and no heart?
