How Life is Organized: Crash Course Biology #4



Here on Earth, life is dizzyingly diverse—but it’s also surprisingly organized. A sense of order structures life and its processes, …

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39 thoughts on “How Life is Organized: Crash Course Biology #4”

  1. Emergent properties are the most incredible thing about the universe in my opinion.

    From mathematics and information we get physics, which allows chemistry, which leads to biology and up to consciousness.

    Is there anything higher than consciousness? And whats the link between the top layer and the universe itself – as observation seems to be linked to outcome and even time itself. Time cannot exist the ways humans experience it unless it's observed because you need memory to appreciate the passage of it.

    Is there anything simpler at the bottom? Is it like an onion that can be peeled back forever revealing simpler and simpler "stuff" that has further emergent properties..

    As everything can be described by bits – just a zero or a one. The universe must be built on information. Can it get simpler?

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  2. A great reminder that I am not the center of the universe.

    That I’m a piece ahead of others, and behind more. Above some things & below some things. Next to a lot, waaay far away from a lot, all at once.

    Thanks 🤎

    PS lol mustache not for babies.

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  3. Which mayfly species lives for only 12 hours? I don't know of any. Or is only the time of the adultform mentioned here? And not the time the mayfly lives as an egg and a nymph in the water (in most cases for a year). It is important to give that information too so people understand why we have to protect the fresh waters. No clean streaming oxygenrich water for a year, no 12 hours of flying mayflies. Nymphs matter 😉

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  4. Well, I've been sent this so it's only fair to say what I think. I assume that its target audience is American children aged about 10-12.
    Firstly, thank you for making the important distinction between soil and dirt. Americans often don't, which can lead to misunderstandings at the very least. Soil is required stuff, dirt is not-required stuff.
    Generally, I thought the presentation was quite good for the target audience assumed, but I can see that it would become rapidly trivial-seeming for the older viewer.
    Overall, a good start at presenting the basics to an audience who hasn't thought about them previously.

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  5. Seeing a sperm cell next to smooth muscle tissue… I cracked up, instantly, for some reason just knowing where we were was hilarious to me, I’m quite immature

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  6. Hank Green not on a bio vid is reminiscent to me of when Steve left Blues Clues and Joe came, not bad but very different. CRASH COURSE AWESOME EITHER WAY!!!! LOVE TO SEE THE GROWTH OVER THE DECADE!!!

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