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Science | Life Science | Cellular & Microscopic Biology

Cellular and microscopic biology allow scientists to study cells and microorganisms. Cellular biology is the study of cells, including their structure and function. Microbiology is the study of microorganisms, which include algae, bacteria, and viruses.


The Deadly Virus Quiz

 The Deadly Virus Quiz

You have countless viruses (possibly deadly) in your body, but your immune system (usually) keeps them at bay. Quiz yourself on them at HowStuffWorks. See more »

The Bacteria, Virus or Fungus Quiz

 The Bacteria, Virus or Fungus Quiz

Is that weird rash you have a gross fungus, a disturbingly contagious virus or a wholly disgusting bacteria? Test your knowledge at HowStuffWorks. See more »

How Giant Viruses Work

 How Giant Viruses Work

Giant viruses sound like something from a scifi flick. But they're real and not as scary as you think. Learn all about giant viruses at HowStuffWorks. See more »

How are viruses, viroids and prions related?

 How are viruses, viroids and prions related?

Viruses, viroids and prions are microscopic, infectious particles with a common, despicable goal. Find out how they are related. See more »

Are extinct viruses coming back thanks to climate change?

 Are extinct viruses coming back thanks to climate change?

Is climate change to blame for resurrecting ancient viruses? Learn about extinct viruses and climate change at HowStuffWorks. See more »

What's the difference between a bacterial and viral infection?

 What's the difference between a bacterial and viral infection?

There are a few important differences between bacterial and viral infections, and knowing the details can improve your health. See more »

Can drug-resistant bacteria lose their resistance?

 Can drug-resistant bacteria lose their resistance?

Drug-resistant bacteria can be scary. But can this bacteria lose its resistance and be treated with antibiotics? Find out at HowStuffWorks. See more »

How Bacteria Work

 How Bacteria Work

Bacteria are both friend and foe to humanity. They can cause and cure health problems and affect our food. Learn more about bacteria at HowStuffWorks. See more »

Top 10 Germs on Your Smartphone

 Top 10 Germs on Your Smartphone

Spend your life on your smartphone and you may be sending yourself to the sick bed. HowStuffWorks presents a list of 10 nasty germs on your smartphone. See more »

Does your body really replace itself every seven years?

 Does your body really replace itself every seven years?

Does your body really replace itself every seven years? Find out at HowStuffWorks.com See more »