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- Question
Damage to hearing is caused by sounds which exceed
Options- A. 70 decibles
- B. 80 decibles
- C. 100 decibles
- D. 120 decibles
- Correct Answer
- 120 decibles
ExplanationHigh frequency sound attacks the tympanic memberane and makes it defective. 120 decibles is too high a pitch to be heard and therefore it impairs the hearing ability.
- 1. Man has _____ pairs of salivary glands
Options- A. 3
- B. 4
- C. 6
- D. 8 Discuss
- 2. Organisms that depend only on raw plant products are said to be
Options- A. herbivorous
- B. vegetarian
- C. carnivorous
- D. omnivorous Discuss
- 3. Antisnake venom is prepared by
Options- A. Pasteur institute
- B. Hoffkine's institute
- C. Birla's Institute
- D. Indian science Institute Discuss
- 4. For the oxidation, carbohydrates should be in the form of
Options- A. Starch
- B. Cellulose
- C. Glucose
- D. Fats Discuss
- 5. The energy stored in photosynthesis is obtained from
Options- A. Sunlight
- B. Oxidation of glucose
- C. Breakdown of proteins
- D. breakdown of glucose Discuss
- 6. Which of the following organelle is known as the 'Power House' of the cell?
Options- A. Golgi Bodies
- B. Ribosomes
- C. Mitochondria
- D. None of these Discuss
- 7. Who is known as father of Biology
Options- A. Aristotle
- B. Darwin
- C. Lamark
- D. Linneus Discuss
- 8. Transmission of stimuli from one part of body to other part takes place through __________
Options- A. Muscular tissue
- B. Epithelium tissue
- C. Connective tissue
- D. Nervous tissue Discuss
- 9. Synapsis occurs during
Options- A. Mitosis
- B. Meiosis
- C. Both A & B
- D. None Discuss
- 10. Which of these is not a function of the kidneys?
Options- A. The kidneys regulate the plasma volume
- B. The kidneys help to regulate blood pressure
- C. The kidneys help control the rate of red blood cell production
- D. The kidneys deactivate vitamin D and stimulate the activity of osteoclasts Discuss
- maintaining overall fluid balance.
- regulating and filtering minerals from the blood.
- filtering waste materials from food, medications, and toxic substances.
- creating hormones that help produce red blood cells, promote bone health, and regulate blood pressure.
Biology problems
Search Results
Correct Answer: 3
Explanation:
Salivary glands of man are 3 pairs = 6. They are one pair of parotid glands, one pair of sub-maxillary or sub-mandibular glands and one pair of sub-lingual glands.
Correct Answer: herbivorous
Explanation:
Herbivorous organisms are those that take for their food, plant parts like leaves raw in contrast to vegetarian, which means that plant products are taken raw or after being cooked.
Correct Answer: Hoffkine's institute
Explanation:
Antisnake venom: In the Hoffkine Institute at Bombay snake venom in mild dose is injected into horses and the horses are induced to produce anti-venom bodies. These are extracted and used in cases of snake bites.
Correct Answer: Glucose
Correct Answer: Sunlight
Correct Answer: Mitochondria
Explanation:
Mitochondria are known as 'Power House' of the cell because they produce energy in the form of ATP.
Correct Answer: Aristotle
Correct Answer: Nervous tissue
Correct Answer: Meiosis
Explanation:
Synapsis is the pairing of two homologous chromosomes that occurs during meiosis. It allows matching-up of homologous pairs prior to their segregation, and possible chromosomal crossover between them.
Synapsis takes place during prophase I of meiosis.
It is also called as Syndesis.
Correct Answer: The kidneys deactivate vitamin D and stimulate the activity of osteoclasts
Explanation:
The kidneys deactivate vitamin D and stimulate the activity of osteoclasts is wrong among the functions of kidneys.
The kidneys are two bean-shaped organs in the renal system. They help the body pass waste as urine. They also help filter blood before sending it back to the heart.
The kidneys perform many crucial functions, including:
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