Even though it might seem like our bodies are on autopilot, there is a whole lot happening inside us to keep things moving. In this episode of Crash Course Biology, we’ll learn that our cells are in constant communication, reminding each...

The final AP Biology Review.

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Chi-sq
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Paul Andersen describes how cell communication is used in both single-celled and multicellular organisms. He starts by describing the symbiotic relationship between the bobtail squid and the bacteria Vibrio fisheri. He explains how...

Paul Andersen introduces the topic of Biology. He covers each of the four main ideas that were developed by the College Board. These ideas revolve around the concepts of evolution, free energy, information and systems.

Paul Andersen discusses cell communication. He begins by explaining how he communicates with other individuals using various forms of electronic communication. He them explains how cells communicate when the distance between them is...

This video explains activity 08 - set an LED blink rate from the Serial Monitor.
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This clip is from the chapter "Serial Communication- Send and Receive Data" of the series "Arduino for Beginners - 2022 Complete Course".This...

We already learned a little bit about receptors and the signaling pathways that they initiate, but what are the molecules the travel throughout your body, carrying messages like little carrier pigeons? They are called hormones and...