Biology Practice Question and Answer
8 Q: About 70% of the Sun is made up of ____.
741 0632c5cf65c208a6bf7eb9dac
632c5cf65c208a6bf7eb9dac- 1Hydrogentrue
- 2Oxygenfalse
- 3Carbonfalse
- 4Heliumfalse
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Answer : 1. "Hydrogen"
Q: Which is a specialised excretory cell found in Platyhelminthes that acts like a kidney, removing waste material through filtration?
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64a67f809a74b54cff5c6cec- 1Fat cellfalse
- 2Flame celltrue
- 3Stem cellfalse
- 4Sponge cellfalse
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Answer : 2. "Flame cell"
Explanation :
1. Which is a special excretory cell found in Platyhelminthes which acts like a kidney, and the flame cell does the work of removing waste material through filtration?
Q: What is the osmolarity(in mO smolL–1) in the outer cortex and inner medullary region?
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63c8fa49bd6d90332092c5a3- 1300 and 900 respectivelyfalse
- 2600 and 300 respectivelyfalse
- 31200 and 300 respectivelyfalse
- 4300 and 1200 respectivelytrue
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Answer : 4. "300 and 1200 respectively"
Q: Which of the following is incorrect regarding the shapes of the three portions of the small intestine?
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63c7a80bb338bc336f08b810- 1Duodenum-C shapefalse
- 2Duodenum-J shapetrue
- 3Ileum-highly coiledfalse
- 4jejunum-long coiledfalse
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Answer : 2. "Duodenum-J shape"
Q: What is digestion?
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63c7ab778731ac33279ac058- 1Conversion of complex bio-macromolecules to simple absorbable formstrue
- 2Conversion of complex biomolecules to a simple formfalse
- 3Conversion of complex bio-macromolecules to a simple formfalse
- 4Conversion of simple biomolecules to complex formfalse
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Answer : 1. "Conversion of complex bio-macromolecules to simple absorbable forms"
Q: Which is the smallest bone in the human body?
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64b1793ce154aff533669d03- 1Stapestrue
- 2Phalangesfalse
- 3Humerusfalse
- 4Pelvisfalse
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Answer : 1. "Stapes"
Explanation :
1. The smallest bone in the human body is the stapes.
2. This bone is located in the middle ear.
3. The length of the stapes is about 3 millimeters.
Q: The retina in an outgrowth of the______
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63cfbb47e1da9912d9d08ba9- 1Mesencephalonfalse
- 2Diencephalontrue
- 3Telencephalonfalse
- 4Ponsfalse
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Answer : 2. "Diencephalon"
Q: The hard chewing surface of the teeth is____
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63c7cc6abdbddb32fd9d4eae- 1Enameltrue
- 2Tonguefalse
- 3Frenulumfalse
- 4Papillaefalse
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