Answer:
(a) Heart is made up of cardiac
muscles. These cardiac muscles are involuntary muscle (not under the control of
our will). These muscles show continuous rhythmic contraction and relaxation
throughout life; which there by, helps the heart to pump blood. (2)
(b) Fat is a type of connective
tissue (adipose tissue). It acts as a subcutaneous insulation of body for thermoregulation.
(1)
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