Question

1. viruses have several key similarities and differences from bacterial cells. using the table below, read the description and write whether the description applies to viruses, bacterial cells or both (b.s.d)

description	virus, bacteria, or both?
2. does not have a cell wall
3. is considered a living thing
4. contains organelles
5. cannot reproduce without a host cell

1. over the past few centuries, scientists have made discoveries that have improved human health, such as the invention of vaccines, improvements in sanitation, and the development of antibiotics. these advances have helped reduce the spread and effects of many diseases. (b.s.d)

• explain how one scientific advance has helped reduce the spread of viral disease.
• describe how viruses spread and cause disease in the body.

review the information above. then write your answer and your explanation in the space provided.

Explanation:

1. Both viruses and bacteria have genetic material. Viruses lack a cell - wall. Bacteria are living, viruses are not. Bacteria have organelles, viruses don't. Viruses need a host to reproduce. Vaccines help reduce viral disease spread as they prime the immune system. Viruses enter host cells, replicate and cause damage.

of how a scientific advance helped reduce viral disease spread: Vaccines expose the immune system to a harmless form of the virus, priming it to recognize and fight the real virus, reducing spread.
Description of how viruses spread and cause disease: Viruses spread through various means like respiratory droplets. They enter host cells, use the cell's machinery to replicate, damaging and killing cells, causing disease symptoms.

Answer:

1. Both
2. Virus
3. Bacteria
4. Bacteria
5. Virus