science
Grade-4-
Easy
Question
Which structure removes toxins from the body of animals?
- Kidney
- Lung
- Brain
- None of the above
Hint:
The organs which help to excrete out the waste material from body by separating it from blood.
The correct answer is: Kidney
Kidneys
- Kidneys are the excretory organs.
- Kidneys separate waste material or toxins from blood and help to excrete out it.
Kidneys have structural units called nephrons which filter blood.
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Which of the following is an external organ.
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Which is an internal organ?
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- Stomach is also divided into three different parts which play role in digestion.
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Lungs help an animal to _____.
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Eagles have hooked beak because:
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- The beak of eagles is typically heavier than that of most other birds of prey.
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Heart is an organ that pumps_____ to all the organs of the body.
- Blood is pumped by heart to whole of our body.
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- Blood is pumped by heart to whole of our body.
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Chameleons have a _________ tongue which they roll out to catch prey.
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Fishes have_____ as an adaptation of limbs to swim in the water.
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- Fins have specialised structure to easily swim in water.
