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Microbiology
Explorer (Ages 8-12)
Viruses — Are They Alive?
Viruses are tiny capsules of genetic material. They invade cells to reproduce. Whether they count as "alive" is debated.
15 min
+15 XP
The Microbiome
Trillions of microbes live in and on your body. Together they form your microbiome — vital for digestion, immunity, and even mood.
15 min
+15 XP