Biology Questions Practice Question and Answer
8 Q: Which group of animals are named because of their spiny skin and a peculiar water-driven tube system that they use for moving around?
674 064b527acefb5ba16688217c6
64b527acefb5ba16688217c6- 1Hemichordatafalse
- 2Aschelminthesfalse
- 3Echinodermatatrue
- 4Molluscafalse
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Answer : 3. "Echinodermata "
Explanation :
1. All the creatures of Echinodermata phylum are marine and have thorny bodies.
2. There is a mass flow system in their body.
3. A specific water-conveying canal system is found, which helps in their movement.
Q: About 70% of the Sun is made up of ____.
673 0632c5cf65c208a6bf7eb9dac
632c5cf65c208a6bf7eb9dac- 1Hydrogentrue
- 2Oxygenfalse
- 3Carbonfalse
- 4Heliumfalse
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Answer : 1. "Hydrogen"
Q: Which of the following is not a major component of the food?
672 063c7cd998731ac33279b2244
63c7cd998731ac33279b2244- 1Carbohydratesfalse
- 2proteinsfalse
- 3Vitaminstrue
- 4Fatsfalse
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Answer : 3. "Vitamins"
Q: Which of the following is incorrect regarding the shapes of the three portions of the small intestine?
666 063c7a80bb338bc336f08b810
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 the osmolarity(in mO smolL–1) in the outer cortex and inner medullary region?
665 063c8fa49bd6d90332092c5a3
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: The phrase ‘Survival of the fittest’ as a way of describing the mechanism of natural selection was coined by __________.
664 0632c571b5c208a6bf7eb5de5
632c571b5c208a6bf7eb5de5- 1Louis Pasteurfalse
- 2Charles Babbagefalse
- 3Herbert Spencertrue
- 4Marie Curiefalse
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Answer : 3. "Herbert Spencer"
Q: The retina in an outgrowth of the______
660 063cfbb47e1da9912d9d08ba9
63cfbb47e1da9912d9d08ba9- 1Mesencephalonfalse
- 2Diencephalontrue
- 3Telencephalonfalse
- 4Ponsfalse
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Answer : 2. "Diencephalon"
Q: Which is a specialised excretory cell found in Platyhelminthes that acts like a kidney, removing waste material through filtration?
659 064a67f809a74b54cff5c6cec
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?