WebViruses are tiny particles that cause disease in people, other animals, and plants. Different viruses cause the common cold, influenza (flu), chicken pox, measles, AIDS, and many … WebViruses are not alive because they do not complete all of the seven life processes: Movement, Respiration, Sensitivity, Nutrition, Excretion, Reproduction and Growth. We say 'strains' of...

What is a virus? How do they spread? How do they make us sick?

WebMost viruses can't survive very long if they're not inside a living thing like a plant, animal, or person. Whatever a virus lives in is called its host. When viruses get inside people's bodies, they can spread and make people sick. Viruses cause chickenpox, measles, flu, … WebThe virus integrates the normal gene into the DNA of the human cell. Of those viruses that cause disease, some cause short-term ( acute) diseases and others recurring or long … how many vowels sound in english

virus - Kids Britannica Kids Homework Help

WebConnection for AP ® Courses. Viruses differ from other organisms in their method of replication. Viruses replicate within a living host cell, producing changes in the cell that often result in the death of the infected cell. Thus, viruses are considered intracellular parasites. Viral replication involves several steps: attachment, penetration ... WebMar 5, 2024 · For example, the virus that causes chicken pox may infect a young child and cause the short-term disease chicken pox. Then the virus may remain latent in nerve cells within the body for decades. The virus may re-emerge later in life as the disease called shingles. In shingles, the virus causes painful skin rashes with blisters (see Figure below ... WebAug 31, 2016 · Viruses cause familiar infectious diseases such as the common cold, flu and warts. They also cause severe illnesses such as HIV/AIDS, Ebola, and COVID-19. Viruses are like hijackers. They invade … how many vowel sounds are there