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- Question
Only male frog produce croacking sound because ____
Options- A. Female frog have no larynx
- B. Female frog have larynx but no vocal cord
- C. Male frog have three pair of vocal cord
- D. Male frog can magnify their voice with the help of sound box
- Correct Answer
- Female frog have no larynx
- 1. Hardest Part of the Human Body?
Options- A. Tooth Enamel
- B. Femur
- C. Temporal bone of skull
- D. Knee bone Discuss
- 2. Which of the following is an Autotroph?
Options- A. Fish
- B. Algae
- C. Butterfly
- D. Mushroom Discuss
- 3. Silviculture is the branch of botany in which we study about
Options- A. Culture of algae
- B. Development of forest
- C. Culture of fungi
- D. Silciphida plant Discuss
- 4. Which one of the following vitamins is known as the anti sterile factor ?
Options- A. Ascorbic acid
- B. Riboflavin
- C. Niacin
- D. Retinol Discuss
- 5. The sex of a newborn baby is determined by the chromosome inherited from
Options- A. The Father
- B. The Mother
- C. The Father's Father
- D. Both A & B Discuss
- 6. Which of the following is a mixed gland
Options- A. Pituitary
- B. Adrenal
- C. Pancreas
- D. Ovary Discuss
- 7. Nuclear membrane is absent in
Options- A. Volvox
- B. Penicillium
- C. Agaricus
- D. Nostoc Discuss
- 8. Which part of Nervous system controls involuntary actions
Options- A. Medulla oblongata
- B. Cerebellum
- C. Hypothalamus
- D. Spinal cord Discuss
- 9. The Vitamin required for the synthesis of nucleic acid is
Options- A. Tocoferorl
- B. Folic acid
- C. Cyanocobalamine
- D. Riboflavin Discuss
- 10. Monocarpic plants are those that produce fruits ...............during the life of the plant
Options- A. once
- B. thrice
- C. many times
- D. twice Discuss
Biology problems
Search Results
Correct Answer: Tooth Enamel
Explanation:
Tooth Enamel is the hardest and most highly mineralized substance in the human body. It is a tissue and not a bone. This tissue has high mineral content which makes it hardest substance.
Femur and Temporal bone of the skull are the hardest bones of the human body.
Correct Answer: Algae
Explanation:
Here from the above options, Algae is an Autotroph.
Autotrophs :
An Autotroph is also called as Producer, is an organism that produces complex organic compounds from simple substances present in its surroundings, generally using energy from light or inorganic chemical reactions.
Correct Answer: Development of forest
Correct Answer: Riboflavin
Correct Answer: The Father
Correct Answer: Pancreas
Correct Answer: Nostoc
Correct Answer: Medulla oblongata
Correct Answer: Folic acid
Correct Answer: once
Explanation:
Plants are of different types. Some grow well and then produce fruits before they die. In other words they fruit only once in their life. Such plants are said to be monocarpic. Other plants produce fruits every season. These are called polycarpic plants.
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