Which one of the following statements is not true?

Options

A. The flowers pollinated by flies and bats secrete foul odour to attract them
B. Honey is made by bees by digesting pollen collected from flowers
C. Pollen grains are rich in nutrients, and they are used in the form of tablets and syrups.
D. Pollen grains of some plants cause severe allergies ad bronchial affictions in some people.

Answer

To determine which statement is not true, we will analyze each statement provided in the question step by step.

### Step-by-Step Solution:

1. **Evaluate the First Statement**:
- "The flowers pollinated by flies and bats secrete foul odor to attract them."
- **Analysis**: This statement is true. Flowers that are pollinated by flies and bats often emit strong, unpleasant odors to attract these pollinators.

2. **Evaluate the Second Statement**:
- "Honey is made by bees by digesting pollen collected from flowers."
- **Analysis**: This statement is false. Bees do not make honey from pollen; they make honey from the nectar they collect from flowers. Pollen is collected for protein, not for honey production.

3. **Evaluate the Third Statement**:
- "Pollen grains are rich in nutrients and they are used in the form of tablets and syrups."
- **Analysis**: This statement is true. Pollen grains are indeed rich in nutrients and are often marketed as dietary supplements in the form of tablets and syrups.

4. **Evaluate the Fourth Statement**:
- "Pollen grain of some plants causes severe allergy and bronchial infections in some people."
- **Analysis**: This statement is also true. Certain pollen grains, such as those from Parthenium (carrot grass), can cause allergic reactions and respiratory issues in sensitive individuals.

### Conclusion:
After evaluating all the statements, we find that the second statement is incorrect. Therefore, the answer to the question is that the statement "Honey is made by bees by digesting pollen collected from flowers" is not true.

### Final Answer:
The statement that is not true is: "Honey is made by bees by digesting pollen collected from flowers."

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