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- Question
Lamarck's theory of inheritance of acquired characters was challenged by
Options- A. August Weismann
- B. Hugo de Vries
- C. Herbert Spencer
- D. Carl Linnaeus
- Correct Answer
- Herbert Spencer
ExplanationAugust Weismann cut off the tails of mice for 21 successive generations and still they produced generation after generation of only tailed young ones. So he concluded that acquired characters are not inherited.
- 1. The rate of respiration per minute in a new born baby
Options- A. 18 times
- B. 32 times
- C. 26 times
- D. 16 times Discuss
- 2. Cortisol is secreted by
Options- A. Thyroid gland
- B. Pituitary gland
- C. Adrenal gland
- D. Parathyroid gland Discuss
- 3. Vitamin present in guava fruits
Options- A. Vitamin - A
- B. Vitamin - B
- C. Vitamin - C
- D. Vitamin - D Discuss
- 4. The vitamin required for coagulation of blood
Options- A. B6
- B. c
- C. k
- D. b Discuss
- 5. Oxygenated blood flows through which vessel?
Options- A. Pulmonary Veins
- B. Pulmonary Arteries
- C. Both A & B
- D. None of the above Discuss
- 6. Cretinism is due to the disorder of the glands
Options- A. Thymus
- B. Parathyroid
- C. Thyroid
- D. Adrenal Discuss
- 7. Mycolog is the branch of botany in which we study about
Options- A. Algae
- B. Fungi
- C. Bacteria
- D. Virus Discuss
- 8. Five Kingdom Classification was preposed by _________
Options- A. Linnacus
- B. George Bentham
- C. Ariostotle
- D. whittaker Discuss
- 9. Flowers in which polllination takes place by insect their pollen grains are ________
Options- A. Smooth and dry
- B. Rough and sticky
- C. Rough and dry
- D. Large in Size Discuss
- 10. Branch of science which deal with the study of causative agent of disease is __________
Options- A. Ecology
- B. Etiology
- C. Eugenics
- D. Euthenics Discuss
Biology problems
Search Results
Correct Answer: 32 times
Correct Answer: Adrenal gland
Correct Answer: Vitamin - C
Correct Answer: k
Correct Answer: Pulmonary Veins
Explanation:
The oxygenated blood flows through pulmonary veins then leaves the lungs, which return it to the left heart, completing the pulmonary cycle.
Correct Answer: Thyroid
Explanation:
Cretinism is a disease caused by hypothyroidism(less thyroxine formation).The symptoms of the disease are retardation of mental, physical and sexual developments. Potbellt, protruding tongue, dry skin etc are also indicative of this disease.
Correct Answer: Fungi
Correct Answer: whittaker
Correct Answer: Rough and sticky
Correct Answer: Etiology
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