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Viruses are very small particles that can infect animals and plants and make them sick. Viruses are made up of genetic materials like DNA and are protected by a coating of protein. Viruses hijack the cells of living organisms. They inject their genetic material right into the cell and take over.
Viruses are made up mostly of a substance called nucleic acid surrounded by protein. On its own, a virus is lifeless. However, it becomes active when it infects, or enters, a cell of an animal or a plant.
24 sty 2023 · Viruses are types of germs that need to be in living cells to grow and reproduce. The place where viruses are found is called a host. A virus can survive in plants, animals and people. Some can also survive on objects. This is why washing your hands is so important!
Viruses & Diseases. While both can cause disease, viruses are not living organisms, whereas bacteria are. Viruses are only "active" within host cells which they need to reproduce, while bacteria are single-celled organisms that produce their own energy and can reproduce on their own.
Free Printable viruses worksheets. Science enthusiasts, discover a world of fascinating viruses with our free printable worksheets! Perfect for science teachers and students alike, these resources will help unravel the mysteries of viral infections and their impact on our world.
5 cze 2020 · Teach all about germs with these free printables about viruses and bacteria. Although bacteria and viruses are similar, they are different types of germs. I think most moms know the difference by one thing how they are treated.
A virus is a very tiny type of germ. Viruses (say: VY-ruh-sez) can get inside the body and make a person sick. Viruses cause colds, chickenpox, measles, the flu, and many other illnesses. Antibiotics only work on bacteria, not viruses.
