The central nervous system (CNS) is a part of the nervous system, it comprises the spinal cord and the brain. The brain plays in an important role in controlling most functions in the body such as movement, memory, speech etc.
Animals that have bilateral symmetry have a central nervous system because of the presence of the brain. But animals with radial symmetry such Cnidarians which include corals and jelly fish, do not have a central nervous system. Instead of the presence of neurons, they possess nerve nets.
<u>A cell wall containing peptidoglycan and distinctive ribosomes</u>
Bacterial cell dividers are made of <em>peptidoglycan</em> (additionally called murein), which is produced using<em> polysaccharide chains cross-connected by irregular peptides containing D-amino acids</em>
Gram-positive microscopic organisms have a thick cell divider containing numerous layers of <em>peptidoglycan and teichoic acids</em>
<em>Ribosomes are small particles</em> which is related proteins that capacity to synthesize proteins and comprising of RNA
Proteins are needed for many cellular capacities, for example, directing chemical procedures and repairing damage
Ribosomes can be discovered drifting inside the appended to the endoplasmic reticulum or cytoplasm
