Bacteria, Fungi, and Viruses | Ask A Biologist
Jul 23, 2014 · A microscopic image of Varicella zoster, the virus that causes the chicken pox. Image by PD-USGov-HHS-CDC. Many common conditions can be attributed to viral infections. The flu, the …
Memory B-Cell | Ask A Biologist
Aug 4, 2011 · This makes it much easier to fight the same virus or bacteria a second, or third, or fourth time. A Memory cell never forgets Toward the end of each battle to stop an infection, some T-cells …
Types of GMOs | Ask A Biologist
Mar 31, 2015 · Virus Resistance – Did you know that plants can get sick from viruses? These viruses do not make people sick, but they can damage crops. Genes have been added to some plants so they …
Endosymbiotic Theory | Ask A Biologist
Feb 24, 2016 · Slime molds are a great example of cooperation among cells. They can live separately as single cells, but gather together to perform special behaviors. This slime mold is known as the …
How do viruses get into the body? | Ask A Biologist
Mar 23, 2020 · What is a virus?Before talking about how viruses work, let’s take a look at what a virus is, exactly. A virus is a kind of infectious particle, made of genetic code in a protective shell. Most …
Are viruses alive? - Ask A Biologist
Mar 7, 2020 · What's the final answer? When scientists apply this list of criteria to determine if a virus is alive, the answer remains unclear. Because of this, the debate of whether viruses are living or non …
Classifying Living Things | Ask A Biologist
May 22, 2010 · From the time of Aristotle, scientists have been arranging living things in order to study and understand them. The science of classifying living things is called taxonomy.In a classification, a …
What Do Viruses Do When They Are Dormant? | Ask A Biologist
Oct 17, 2018 · When a virus infects our cells, it can do a lot of damage. But, in some cases, certain viruses get into a cell and go dormant, kind of like they are taking a nap. If we are going to better …
Antibiotics - Ask A Biologist
Jul 8, 2014 · The symptoms alone can’t tell you if the culprit is a virus or bacterium. Viruses that cause the common cold produce these symptoms. So do Streptococcus bacteria, the cause of strep throat. …
How realistic is the movie Contagion? | Ask A Biologist
Mar 19, 2020 · It is a measure of the reproductive rate of the virus, which can affect how quickly and easily it can spread. She gives a great run down of some of the factors that are at play in figuring out …