Rowan berries are generally considered non-poisonous for humans when consumed in small quantities. However, they can cause mild stomach upset or diarrhea if eaten in large amounts. It is important to note that some people may have allergies or sensitivities to certain compounds in rowan berries, so it is best to consume them in moderation. Additionally, rowan berries are toxic to some animals, so it is important to keep them away from pets. **

Yes, parts of poisonous plants can sometimes be treated to make them non-toxic. This process usually involves specific methods such as drying, cooking, or fermenting the plant parts to break down or remove the toxic compounds. However, it is important to note that not all poisonous plants can be made safe for consumption through treatment, and caution should always be exercised when dealing with potentially toxic plants. Consulting with a knowledgeable expert or botanist is recommended before attempting to treat any poisonous plant for consumption. **

A non-convertible currency is a currency that cannot be easily exchanged for another currency on the foreign exchange market. This can be due to government restrictions, such as capital controls or fixed exchange rates, or simply because the currency is not widely traded or accepted internationally. Non-convertible currencies are often used in countries with closed or restricted economies, and they can be difficult to exchange for other currencies, making international trade and investment more challenging. **

Yes, 10 Pfennig coins are typically made of copper and nickel, which are not magnetic metals. Therefore, 10 Pfennig coins are non-magnetic. **

Yes, there are certain varieties of apples that contain toxic compounds in their seeds, such as cyanide. However, the amount of cyanide in apple seeds is typically very small and would need to be consumed in large quantities to be harmful. As for trees with poisonous apples, there are no known species of trees that naturally produce poisonous apples. **

Mealworms are not poisonous to humans. In fact, they are often used as a food source for birds, reptiles, and even some humans in certain cultures. However, it is important to ensure that mealworms are raised in a clean and safe environment if they are intended for human consumption. As with any food, it is important to ensure proper handling and preparation to avoid any potential health risks. **

Ants themselves are not poisonous, but some species of ants can deliver venom through their stings or bites. The venom can cause pain, swelling, and in some cases, allergic reactions in humans. However, the majority of ant species are not harmful to humans and their bites or stings are usually just irritating rather than dangerous. It's important to be cautious around ants and avoid disturbing their nests to prevent any potential stings or bites. **

No, broccoli is not poisonous. In fact, broccoli is a highly nutritious vegetable that is rich in vitamins, minerals, and antioxidants. It is safe to eat and is a popular choice for a healthy diet. However, like any food, it is important to wash and cook broccoli properly to ensure it is safe to consume. **