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.

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How SARS Works

Severe acute respiratory syndrome or SARS is back in the news. A second case has been confirmed in China in the southern province of Guangdong. Learn about this potentially lethal condition.


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 »

How the Human Microbiome Project Works

How the Human Microbiome Project Works

The Human Microbiome Project is looking to identify the whole of our microbial landscape. Learn more about the Human Microbiome Project. See more »

10 Weirdest Sources for Antibiotics

10 Weirdest Sources for Antibiotics

Many lifesaving antibiotics are discovered in some pretty nasty places. Here are the 10 weirdest sources for antibiotics at HowStuffWorks. See more »