Discussion
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- Question
Name the blood cells in which nucleus is absent
Options- A. Lymphocytes
- B. Blood Platelets
- C. Monocytes
- D. Eosinophils
- Correct Answer
- Blood Platelets
- 1. The energy released by 1 gram of glucose is
Options- A. 6 kcal
- B. 4 kcal
- C. 5 kcal
- D. 3kcal Discuss
- 2. 13 - Chambered heart occurs in
Options- A. Leech
- B. Earthworm
- C. Snail
- D. Cockroach Discuss
- 3. Animal without red blood cells
Options- A. Frog
- B. Earthworm
- C. Snake
- D. Peacock Discuss
- 4. Spermology is the study of
Options- A. Seed
- B. Leaf
- C. Fruit
- D. Pollen grain Discuss
- 5. The human heart is
Options- A. Neurogenic heart
- B. Myogenic heart
- C. Pulsating heart
- D. Ampullary heart Discuss
- 6. The phenomenon of summer sleep by animals is called
Options- A. hibernation
- B. aestivation
- C. laziness
- D. lethargy Discuss
- 7. The corner of the cells of collenchyma tissue in plant are thickened due to deposition of _____
Options- A. Lignin and suberin
- B. Suberin and cutin
- C. Cellulose and pectin
- D. Chitin and lignin Discuss
- 8. Bone deformities occur due to the excess intake of
Options- A. Phosphorus
- B. Potassium
- C. Fatty acid
- D. Fluorine Discuss
- 9. The plant dye Henna imparts orangered colour to skin and hairs due to its reaction with which of the following?
Options- A. Protein and amino acids
- B. Lipids
- C. Carbohydrates
- D. Amino acids Discuss
- 10. Number of eyes found in Earthworm..........
Options- A. One
- B. Many
- C. No eye
- D. Two Discuss
Biology problems
Search Results
Correct Answer: 4 kcal
Correct Answer: Cockroach
Correct Answer: Earthworm
Correct Answer: Seed
Correct Answer: Myogenic heart
Explanation:
Hearts are of several types. In some invertebrates the heart is simulated by the nervous system to do its work. Such hearts are called Neurogenic hearts. The Human heart is myogenic. i.e, it recieves the stimuli for contraction from the muscular node called sinu-auricular node or pace maker.
Correct Answer: aestivation
Explanation:
Aestivation is summer sleep. Many organisms like the snails do not find it comfortable in summer. They withdraw and lead a life with reduced BMR (basic Metabolic Rate) in a state of dormancy.
Correct Answer: Cellulose and pectin
Correct Answer: Fluorine
Correct Answer: Protein and amino acids
Correct Answer: No eye
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