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Viruses

Person sitting in front of a bookcase with books on various scientific subject. Caption: Microbes come in a huge variety of shapes--
Ask a Scientist About
Episode 3
4 minutes 44 seconds
Grade Level: 5 - 8
Computer rendering showing tiny air sacs called alveoli attached to red and blue capillaries.
Deep Look
Season 7 / Ep 11
4 minutes 59 seconds
Grade Level: 7 - 12
Still image from: Journey to the Microcosmos: The Terrifying Viruses of the Microcosmos
Journey to the Microcosmos
Season 2 / Ep 17
12 minutes 45 seconds
Grade Level: 9 - 12
Cartoon of a blue amoeba poking an irritated orange amoeba with an arrow that reads, "Intercellular to intracellular" that points to a frowning orange amoeba. Another blue amoeba stands next to an arrow that reads, "Intracellular to intercellular" and points to a blue amoeba poking an orange amoeba. Title card reads, "Signaling."
The Amoeba Sisters
Episode
9 minutes 34 seconds
Grade Level: 7 - 12
Face painted white with orange and yellow spots peers at us from the edge of the frame with a splotchy gray backdrop. Text reads, "Episode One: The Human Microbiome."
26 minutes 15 seconds
Grade Level: 11 - 12