Per NCERT Class 9 Science, EPITHELIAL tissue does which of the following?
APumps blood through the body
BConducts electrical signals
CStores fat
DForms outer covering of body (skin) + lines internal organs — closely packed cells prevent germ entry + reduce water loss
Answer & Solution
Correct answer: D. Forms outer covering of body (skin) + lines internal organs — closely packed cells prevent germ entry + reduce water loss
Per NCERT §3.3.1, epithelial = outer covering + organ lining, protective. The other options describe muscle / fat / nervous tissues.
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