Not AI But Real Answers By Experts!
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The cell is the building block that makes up living things. Everything that is alive is made of one or more cells. The simplest plants and animals consist of only one cell. Cells in mon complicated living things work together. They are organized in groups, each of which has some special work to do for … Read more
The ordinary housefly can manage to find enough food to live on almost anywhere. This is because of its tiny size and weight. A thousand adult flies weigh only about 25 to 30 grams. Houseflies do not eat solid food, because they have no equipment for biting. The mouthparts of the By are made for sucking up liquid food. … Read more
As you know, a butterfly goes through a life cycle. First, it is an egg, then it becomes a caterpillar, then a pupa (during which it sleeps through the winter), and finally it emerges as a butterfly. There is one period during that life cycle when this creature does most of its eating, and that … Read more
At one time, whaling was quite an important industry. To most of us, the idea of hunting for whales must seem a little strange. What can we get from this huge creature that can be useful to us? Well, the number of valuable products that come from whales is amazing. The blubber of the whale … Read more
Most people think we just have two tonsils, located on either side of the throat just behind the tongue. But this isn’t true. There are several pairs of tonsils of different sizes. Tonsils are small bundles of a special kind of tissue called “lymphoid”. Because of their location in the throat, they have a special … Read more
The chief purpose of a name, of course, is identification. From the beginning of history, children have been given names at birth or soon afterward to identify them. But when parents gave a child a name in ancient times, they also wanted to express something to have a meaning, For example, it might describe his … Read more
If you’ve ever been fishing you probably feel that fish eat everything but what you use for bait! Little boys in towns often catch fish with a piece of bread on a bent pin. Country boys use worms. Trout fishermen use flies. And some ash is tempted to “bite” by other fish on the hook. … Read more
About 10 to 12 percent of all the people in Europe and America suffer from peptic ulcers at some time in their lives. What Is An Ulcer And What Causes It? The gastric juice that is manufactured in the stomach contains hydrochloric acid, mucus, and an enzyme called “pepsin”. Pepsin breaks down protein in the … Read more
Scarlet fever is a disease that attacks the mucous membranes of the nose and throat and usually produces a skin rash. The infection is caused by bacteria belonging to the streptococcus group. While the disease itself is no longer considered serious, it may & followed by other more serious illnesses. Two of the worst of … Read more
Mumps is a contagious disease in which the salivary glands swell up. The parotid glands, which are located below and in front of the ears, are the chief ones affected. Mumps is caused when these glands are invaded by a virus. And it is spread almost entirely by direct contact with a person who is infected. The … Read more