Give reasons :
1. Epithelium is an example of multi- tasking.
2. Tissues are vital in multicellular organisms.
3. Muscles of our alimentary canal are considered involuntary .
Answers
Answer:
I only know 2nd one So Sorry
Tissues are vital in multicellular organisms because they are functional units of body. Multicellular organisms have complex body structures thus more kinds of tissues and organs are required for sustainance.
tissues help in endless ways to our body
there are tissues for transportation;digestion;circulation and endless ways
without them no functioning would take place and then body will be a useless organism they are group of cells which constitute the whole humankind without them we wouldn't be here as they are the basis of all multicellular and some unicellular organisms.
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it act as covering to many organs like lung alveoli, pct of kidney , blood vessels
some epithelium cells produce secretions like mucus
it helps in absorption of food
it act as physical barrier to body (skin made of stratified keratinised squamous epithelium )
it also helps in the expansion of urinary bladder ( transitional epithelium)
tissues are made up of cells which together function as an organ
muscles present in alimentary canal are smooth muscles hence involuntary