Which two characteristics of living things do viruses exhibit
1.They have genetic material.
2.They increase in size over time.
3.They are made up of a single cell.
4.They eliminate waste.
5.They reproduce.
The Correct Answer and Explanation is:
The two characteristics of living things that viruses exhibit are:
- They have genetic material.
- They reproduce.
Explanation:
Viruses are unique entities that straddle the line between living and non-living things. They are not considered fully “alive” in the traditional sense because they cannot carry out basic life processes, such as metabolism, on their own. However, viruses do exhibit some of the key characteristics of living organisms, specifically in their ability to carry genetic material and reproduce.
- They have genetic material:
One of the defining features of living organisms is the presence of genetic material, usually in the form of DNA or RNA, which carries the information necessary for growth, reproduction, and functioning. Viruses also possess genetic material, but it is typically in the form of RNA or DNA, not both. This genetic material encodes the information required to replicate the virus within a host cell. While viruses don’t carry out metabolic processes like living cells, they still contain the instructions to reproduce themselves, which is a hallmark of life. - They reproduce:
Reproduction is another key characteristic of living organisms. Viruses are unable to reproduce on their own, as they lack the necessary cellular machinery. However, they do have the ability to reproduce by hijacking the cellular machinery of a host cell. Once inside a host, a virus injects its genetic material, instructing the host cell to replicate viral components, assemble new viral particles, and release them to infect other cells. This process allows viruses to reproduce and propagate, which is why they can spread and cause infections.
Why the other options are incorrect:
- Increase in size over time: Viruses do not grow in size over time. They are static particles until they infect a host.
- Made up of a single cell: Viruses are not cells; they are made up of a protein coat surrounding genetic material, making them non-cellular.
- Eliminate waste: Viruses do not have metabolic processes, so they do not eliminate waste in the way living organisms do.
In summary, viruses exhibit genetic material and the ability to reproduce, making these two characteristics of living things they share.