I'm having my last ever biology exam tomorrow before graduating high school so I feel like this would be a good time to thank this channel and Hank Green for essentially teaching me everything I needed to know.
Be glad you had this in high school. This whole thing started when I was finishing my junior year of high school. I never studied for my test, but if I had this, my GPA might have been a little higher lol
you make me want to learn more, unlike my school which makes me want to never learn anything ever again. You have reminded me and many other students why science is amazing and interesting. thank you, you are the reason i am doing well in biology
I just want to share with you guys at Crash Course that I have never taken a Biology course in my life, but by just watching all 40 videos in this series in this last week I took the Biology CLEP test yesterday and passed with a 55. Thanks a load you guys, you helped me complete my natural science credits!
Alondra Arevalo Yes, for us, too... I do pretty well in my AP bio class (I'm your annoying curve-setter type) but I don't think that's saying much since our AP teacher has been out for a while and half of this semester was taught by a long-term sub, which is... well, it's a thing. I feel quite unprepared. :P
Hank and Crash Course team... thank you for this webseries. My wife is a molecular biologist and this series has allowed me to really talk to her and understand some of her work. Kudos!
I have a Clep Examination for Biology tomorrow morning, and I tried studying for it with a couple of text/workbooks I picked up at the bookstore, but I can say that watching the entire crash course for biology really helped me understand the information. I'm nervous for the exam tomorrow, but I can say that I learned a whole lot more from this series than I did when I was trying to teach myself from the books! Thank you so much for this series, and I'll definitely send more people this way if they need help in bio!!
Thank you so much for this series on Biology. I am currently doing a degree on Biology and your videos though brief, give a very good and accurate overview and summary of various topics! It certainly puts all the little details into perspective!
Love it or hate it, it has been a journey for sure, the fact that somone other than a major university can bring us content like this is a testament to the times, this chapter closed and on to the next, I would like to thank you all from the bottom of my heart for this and every past, present, and future series, you are doing good work, and every person should take note of what a small group of people can do if you really put your heart into it, THANK YOU, HANK AND CRASHCOURSE, THANK YOU!!!!!!!!
Aewsome job on Crashcourse Biology! This and your brother's crash course series are literally my two favorite things on youtube. Looking forward to ecology and whatever else you move into next!
Can't believe that I've watched all 40 episodes within 2 days before my AP bio tmr. Hank, thank you so much for your excellent courses...You really save me a lot cuz I was self-studying.I may not achieve a 5 but I'll do as hard as can. I'm sure that I'll continue studying evolutionary biology or paleontology in college. Thanks again for your intriguing crash courses and I will keep up watching them!!! And also, hope that you can upload more biology courses~😉
Thanks Hank and all the team for this CrashCourse! I just finished watching the whole Ecology course, and it was sooo good to feel my brain cells grow in the process. :)
Hey guys, and Hank. I've been watching your videos for quite a while and I don't really have any money to help you so I thought I'd give you a story instead. Read if you wish. :) I don't know when the love of science took hold in me, but I know I was young. Through time and life, I found myself drifting away from that. A few events, and a change of scenery later, I find myself in college for the first time, at age 34. This is relevant to you because when I decided what areas I wanted to study, I came upon your Biology and Chemistry courses. They were the best and most entertaining I found, so I kept watching. I did your whole Biology course thus far, and when I first stepped into my Biology class, I learned that I could have passed the final exam that day. That is how amazing you are. That's how you improve people's lives in a real, tangible way. Thanks.
omg i watched all the episodes and i couldn't believe what i was doing at school during the biology period.i think i learnt many things that i didn't understand.this is really useful although its super fast.
Hi Crash Course! Your lessons are great! I THINK YOU SHOULD SHOOT SOME VIDEOS ON PHYSICS COURSES! IT WOULD BE INTERESTING AND USEFUL FOR THE COMMUNITY. (EG: YOU CAN BEGIN WITH NEWTON AND KEPLER'S LAWS) TAKE COUNT OF IT PLEASE! THANKS!
I am currently studying for my matriculation exams i biology for the second time, and I just want to express how thankful I am for these videos existing. Studying the same things in biology for the second time is incredibly boring, which makes me not pay attention to what I'm reading. These videos provide a fun new way to go through what I've forgotten, and they force me to concentrate since english isn't my first language and I need to understand what he is explaining. I love it!
Took me a couple of months, but I finally finished watching all the episodes. Loved this course, as well as the humor Hank peppers into his videos. Great to laugh while I learn. Thanks for putting this together.
One of my favorite classes in college was General Ecology. It's such a fascinating subject, and important for finding out about how everything is linked and doing good in the environment.
I love it when crash course actually matches up with what I'm learning in school xD it makes it so much easier to understand what my teacher is talking about, and it makes me seem really clever when I watch the crash course of a topic we're about to do and can answer all the questions in class :L
I've been subscribed for a year but I've never been interested in biology. Now that I have a bio exam next week, I must say that I'm really thankful to your chanel. The content of the video is almost the exact same as what we saw in class!
***** it's going to be my first bio exam of this session. I have two sessions each year and next finals will be in December, the one after December is in June. From your name, I guess you speak Chinese. Sorry if I'm wrong.
+ZHOU XUANLE yess I'm Chinese :D hahahaha. A new "year" starts end August. I happen to live in the French (weird) side of Canada and because of that we have cegep instead of college. It lasts two years, after those years I will be heading to university. It's pretty much the same thing, but with different name. What are you studying right now?
You have been my saving grace for biology this year. My teacher is awful and I couldn't understand anything with her, but you have helped me so much! You have the best educational videos on RU-vid and without you and John, I wouldn't be doing as well in school as I currently am. Thank you!
why nothing about marine biomes? Also there are extra numbers in descriptions quick links to subjects: 3) Biome Type 06:03:1, a) Temperature 05:06:1, b) Community 02:26:1, 1) Ecological Hierarchy 02:01:2
I've learned more from watching your videos than I have from my biology professor throughout the whole semester, thank you for explaining everything in terms we can all understand! I feel much better going into my final now :)
I really like how this Biology series ended with a video on Ecology. It seemed to close one chapter, but then also open another (as Hank was saying). Yet again, Crash Course succeeds in making me one happy (and a little more knowledgeable) viewer! :-)
Thank YOU Hank, although I knew most of this being a vet, I am fully in love with the idea of sharing this wonderfull knowledge of life and its mechanics. And the way you and your brother mediates and teach is captivating and interesting which is perhaps the most important of it all. So thank you so very much. Looking forward to future seassons/lessons
Thank You, Crash Course for helping me on this journey through science....I will re watch these videos....because they were right....Science is Cool. :)
Thank you! I had a blast following these videos. Learned a lot of new stuff, got refreshers on stuff I learned in high school. Can't wait for the next series!
For a second there, I thought CC was over...and felt much like I did when I watched the last episode of Cosmos that first time. UGH. Good, good, good... Hank baby, we want you to keep teaching us stuff and fight the good fight for informed enlightenment and against ignorance
I fangirl squealed when I saw this episode. Hank, you make my life. It took you long enough to get to my favorite sub-topic, but it's worth it! SO WORTH IT!
Unfortunately for me, Notes. Yes, for a kid who wants to be a future RU-vid Gamer, I am using this for studying. I think I'm too young to be dreaming this big. If you count a mid 16 yr. old kid too young.
I have a question that does not really pertain to this episode, but rather biology as a whole. Are there any organisms, or is it theoretically possible for an organism to completely claim and integrate the cells of another organism as it's own. Two things I think would be similar are transplants where a human body accepts the organ if a donar. Or digestion where we break things down to make energy to create structures of our own. However these aren't quite what I had in mind. The reason I ask is i got a great idea for a Sci Fi novel (which of course will include things that aren't necessarily possible). But if this is something that is possible. Is there a name for it, and how would it work? Or can you point me in the right direction for research of my own?
Great question! Yes, actually Human beings are capable of using certain cells from other organisms. A lot of species can use certain cells and structures from other species- however, there are many limitations because of differences in blood type, cellular structure, enzyme functionality, and molecular components. But, it is possible. (The next two things don't answer your question, but I thought, eh, they're cool enough to be worthy of saying) It's also possible for animals to use parts from certain organ systems in other organ systems. Dogs, for example, have had parts of their intestinal tract cut and used them to replace a part of their esophagus (a large portion), and within several days the intestinal-esophagus worked as well as the original, and within a few weeks you couldn't tell the implanted esophagus from the first one. There is a very popular hypothesis in biology that mitochondria, the energy producers of the cell, were once their own separate prokaryotic cell that was 'consumed', per say, in another prokaryotic cell. And this would have to have happened very early on in the history of life because nearly all cells have mitochondria, and the structure of mitochondria seem to indicate an ability to have once survived on their own. So, for sci-fi stuff, there are two more ideas you can use somehow, I'm sure! :D
Broderick Gerano Thank you very much for the reply! I very much appreciate it. It's kinda cool to think that even now I may have cells from other organisms haha. I think that it is very cool that you guys take the time to answer questions even months after the video has been posted. Crash course has inspired me to go back to college and do something I really enjoy rather than working a 9 to 5. You have reminded me how much I love to learn new things and question existing ideas. I'll be signing up for classes next semester. So I thank all of you who are involved in the creation of crash course!
Tyler Singleton I'm currently in school, and it's a great decision! I'm very happy you're getting back into school- whatever you pursue, keep interested, keep learning, and keep showing others how beautiful life is, from math to biology to the human mind to tech. Whatever your passion, good luck, and keep yourself focused. P.S. I'm not a part of Crash Course- I'm just a student who loves biology and wants to help curious people become even more curious, like you, friend. :D
Yes, it is accepted as fact that eukaryotic cells snagged a bacteria that could make energy really well, and used it for its own purposes. Like a symbiotic relationship. This occurred a LONG time ago. This bacteria is known as mitochondria. It has its own DNA, and during replication, it replicates exactly like a bacteria--using Binary Fission. Hope that was what you were asking!
Intergalactic Subculture Sweets+ Yes, but the capacity to manipulate a cell is a sign of life. Viruses are at the very edge of life, they can do something only inside a cell, so, this is a quality that give them a place in the group of the living things. They aren't like all of the life form on this planet, maybe they are the missing ring between macromolecules and the simplest life form (bacteria).
Thank you Hank! Thank you Crash Course Team. I am now ready to pass my CLEP in Biology, gain 6 credits and not even have to take the class....you are a wonderful help...as soon as I hit Western Civ I shall be watching your History Crash Course. Thank you!
I cannot thank you enough for these videos--they have helped me so much, and made me so confident for the AP Bio exam tomorrow. I feel like I have a chance now. Good luck everyone!
population: same species community: different species living together ecosystems: organisms and non-living things. biome: organisms evolve, grassland, rainforests biosphere; atmosphere, key ecological factors abiotic: temperature, water physiognomy: how the biome looks
