Biology Questions Practice Question and Answer
8 Q: Red worms have a structure named ______ which helps them in grinding their food.
884 062beae5ea00ee61c3116d7f6
62beae5ea00ee61c3116d7f6- 1Cropfalse
- 2Intestinefalse
- 3Gizzardtrue
- 4Esophagusfalse
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Answer : 3. "Gizzard"
Q: What is the full form of OCD?
877 0644be3960c6225ce3562a392
644be3960c6225ce3562a392- 1Obesity-Compulsive Disorderfalse
- 2Obsession-Controlling Devicefalse
- 3Obesity-Controlling Devicefalse
- 4Obsessive-Compulsive Disordertrue
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Answer : 4. "Obsessive-Compulsive Disorder"
Q: "B" represents the gene for brown coat colour and “b” represents the gene for white coat colour. In the cross BB x bb all the offsprings have a brown coat. Which genetic principle is illustrated by this cross?
877 062ebdbdbceafbe581b7c9cf6
62ebdbdbceafbe581b7c9cf6- 1Multiple allelesfalse
- 2Dominancetrue
- 3Co-dominancefalse
- 4Crossing-overfalse
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Answer : 2. "Dominance "
Q: Which of the following fall under Phylum Cnidarian of the animal kingdom?
876 064c2210496ae1f4842fecb82
64c2210496ae1f4842fecb82- 1Sea urchinsfalse
- 2Earthwormsfalse
- 3Snailsfalse
- 4Coralstrue
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Answer : 4. "Corals"
Explanation :
1. Coral comes under the Cnidarian phylum of the animal kingdom.
2. Coral, also known as Coral and Mirajan, is a type of tiny sea creatures that live in groups numbering millions.
3. Coral, also known as Coral and Mirajan, is a type of tiny sea creature that lives in groups numbering millions.
Q: Which one is the first heart sound?
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63c8f9eb8731ac33279f097b- 1Lub during closure semilunar valvesfalse
- 2Lub during closure of atrio-ventricular valvestrue
- 3Dub during closure of atrio- ventricular valvesfalse
- 4Dub during closure of semilunarvalevesfalse
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Answer : 2. "Lub during closure of atrio-ventricular valves"
Q: What are the basic units from which human spare parts can be created?
872 063cfbff9484e510dd0678fe3
63cfbff9484e510dd0678fe3- 1Nerve cellsfalse
- 2Stem cellstrue
- 3Heart cellsfalse
- 4Kidney cellsfalse
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Answer : 2. "Stem cells "
Q: Nyctalopia, more commonly known as Night Blindness, is caused by the deficiency of which nutrient?
871 064bfc7da2d3130f575545330
64bfc7da2d3130f575545330- 1Vitamin Cfalse
- 2Magnesiumfalse
- 3Potassiumfalse
- 4Vitamin Atrue
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Answer : 4. "Vitamin A"
Explanation :
1. Nyctalopia (night blindness) is caused by deficiency of Vitamin A.
2. Foods rich in Vitamin A are carrots, spinach, sweet potatoes, lettuce, etc.
3. Vitamin A deficiency can cause damage to rod cells, which reduces the ability to see in low light.
Q: A disease named tuberculoris arises?
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603632f8a0666c3c8505f38c- 1Bacteriatrue
- 2Malnutritionfalse
- 3Protozoafalse
- 4by virusfalse
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