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Complete the sentences- (1x4=4)
a) During inhalation, the ribs ___________________.
b) Frogs are amphibians that mean ____________.
c) The heart is enclosed in _____________.
d) Blood vessels are of three kinds- ___________.
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Explanation:
a) During inhalation, the ribs move up and outwards and diaphragm moves down.
b) Frogs are amphibians that mean they are small vertebrates that need water, or a moist environment, to survive.
c) The heart is enclosed in a thin pericardium formed of the single pericardial membrane.
d) Blood vessels are of three kinds- arteries, veins, and capillaries.
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