Sage-Tips

Do viruses need oxygen?

Most of the bacteria found in the human gut is anaerobic bacteria. Additionally, viruses technically do not require oxygen as they are not living.

Do viruses maintain a stable internal environment?

Viruses have no way to control their internal environment and they do not maintain their own homeostasis.

Do viruses eat or breathe?

It doesn’t breathe, it doesn’t eat, it doesn’t excrete, and it doesn’t grow – so it can’t be alive, can it? It hijacks a living cell and uses it to produce so many copies of itself that it bursts the cell – so it can’t be dead, can it? What is it? A virus.

Can you stain a virus?

A method is described for staining virus particles from fluid suspensions with uranyl acetate and phosphotungstic acid so as to enhance contrast for electron microscopy and yet maintain good structural detail. The method requires 100–1000 times less virus concentration than the spray droplet technique.

How do cells respond to their environment?

Biological cells adapt to chemical changes in their environment by sensing certain molecules as they bind to specific receptors on the cell surface.

Are viruses alive Yes or no?

Living things use energy. Outside of a host cell, viruses do not use any energy. They only become active when they come into contact with a host cell. Once activated, they use the host cell’s energy and tools to make more viruses. Because they do not use their own energy, some scientists do not consider them alive.

How do viruses survive without homeostasis?

Viruses do not maintain their own homeostasis, only living things do. They are not able to control their internal environment. Viruses cannot be thought of as living because they lack the metabolic repertoire to reproduce without a host cell.

What cell fights viruses?

Cytotoxic effector cells that can destroy virus-infected cells include cytotoxic T cells, natural killer cells, and activated macrophages. Cytotoxic T lymphocytes can recognize and destroy virus-infected (more…)

How do viruses use DNA?

DNA, which is the makeup of the genome of most organisms, can be replicated, but also transcribed into RNA molecules, which are then translated into proteins. Proteins go on to perform functions, such as the capsid of a virus is made of proteins that provide a structure to encapsulate the viral genome.

Can virus be seen with naked eyes?

Viruses are often termed “the invisible enemy”. They aren’t visible with the naked eye, or even by using a standard optical microscope.

What is the zombie virus in World War Z?

Solanum is a common zombie virus in The Zombie Survival Guide. While not addressed by this name in World War Z, the book references material from the Survival Guide as both are set in the same universe and describe the same disease.

What is the difference between the infected and the zombies?

Zombies are slow which makes escaping from a small number of them easier (although because of the Zombie’s durability, their hordes tend to be greater in number). Infected are fast and very agile and will not give up chase until the target is unreachable.

What animals would survive a zombie attack?

From ants to whales, nearly all living creatures will flee in terror from the zombie virus. Because of their strong connection to humans, dogs are shown to be the sole non-human animal that will stand their ground against zombies, allowing them to receive specialized training to become scouts for infected areas.

How do walkers turn people into zombies?

Human characters turn into Walkers after they die, no matter what the affliction – be it a bite or a wound – from a Walker. A zombie bite will infect and kill a character, but even if the character dies from a simple wound caused by a Walker they become a zombie.