Why are prunes a laxative? They contain a lot of two different types of fiber, sorbitol, and polyphenols. What is a prune? Prunes are dried plums, although not all plums can become prunes. Plums also have laxative properties, but they are not as effective as prunes. In America, in 2001, some prune producing companies petitioned […]
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What is a zombie virus? Zombie viruses are ancient viruses that have been frozen in ice, but are being released as the permafrost melts due to climate change. “Zombie” virus is rather a dramatic name. These viruses won’t turn people into zombies and they don’t come from zombies. They are given this name because they
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How does a rattlesnake rattle? They have loose hollow scales on the tips of their tails that strike each other when the rattlesnake rattles its tail. Rattlesnakes are a type of viper and are venomous snakes. There are many different types of venomous snakes, and they are divided by the position of their fangs and
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Why does sunburned skin peel? It peels because the skin cells are dead, and the body is getting rid of them to make way for new cells. When looking at what makes sunburned skin peel, we have to look first at what causes sunburn? It is caused by ultraviolet light that comes from the sun.
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What causes an epileptic seizure? It is caused by abnormal electrical activity in the brain. There is not one reason why people have epilepsy and there is not one type of epileptic seizure. Epileptics can suffer from focal seizures and generalized seizures. As their names suggest, focal seizures are focused on one hemisphere of the
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Is moss one plant or many plants? A patch of moss is made up of many plants. There are many types. There are approximately 20,000 species of moss plants and some of them are huge. The Dawsonia moss grows up to 50 cm tall. However, most moss plants are much smaller than that. Mosses have
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Why do we hiccup? Hiccups are caused by muscular twitches in the diaphragm. The diaphragm is the muscle that we use to breathe. It is a dome shaped muscle that is below the lungs. It is connected to the sternum at the front, the bottom of the rib cage and the spine, to make a
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Why does hair turn white? The pigment cells in the hair follicles die. Our hair is colored by melanin that is produced by the pigment cells in each hair follicle. Melanin is what colors our skin as well. Melanin is produced in cells called melanocytes and different quantities or types of melanin can alter the
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Why are blueberries blue and strawberries red? Because of the animals the plants want to eat their fruit. Flowers and fruit tend to be a certain color because they have either evolved to attract a certain kind of animal or to repel a certain kind of animal. A lot of flowers and animals as well
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How big was a Megalodon? The largest ones could have been 20 meters long. Megalodon was a species of giant mackerel shark. Mackerel sharks have two dorsal fins, an anal fin, five gill slits, eyes without nictitating membranes, and a mouth that extends behind the eyes. Great white sharks are in this family. Megalodons lived
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