Answer:
The chemical and electrical signals are used by brain for communication,sensation and thought. Brain uses electrical signals from communication.
Answer: Cartilage and Bone are specialised forms of connective tissue. They are both made up of cells embedded in an extracellular matrix.
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Scarlet fever or scarlatina is an infection for those people having sore throat. It's symptoms usually is a bright red rash with fever as well as sore throat. It affects children from 5-15 years old. It is cause by the streptococcus pyogenes. It's mode of transmission is droplet and direct contact and the virulence is cause by erythrogenic toxin.
