Krv je neuveriteľne fascinujúca tekutina, ktorá každú sekundu zachraňuje náš... Show more
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Krv – vlastnosti, funkcie a jej významné zložky
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Krv - zloženie a funkcia
Krv nie je len obyčajná červená tekutina - je to vlastne špeciálne tekuté tkanivo, ktoré prúdi v našich cievach ako rýchla doprava. Predstav si ju ako mestskú hromadnú dopravu, ktorá neustále rozvážá potrebné veci a odvážá odpad.
Krv sa skladá z dvoch hlavných častí: tekutej krvnej plazmy a krvných teliesok plávajúcich v nej. Každá časť má svoje dôležité úlohy a bez ktorejkoľvek z nich by sme nemohli prežiť.
Najdôležitejšie pojmy, ktoré musíš vedieť: červené krvinky (prenášajú kyslík), biele krvinky (bojujú proti chorobám), krvné doštičky (zastavujú krvácanie) a hemoglobín (červené farbivo s železom).
Tip: Zapamätaj si, że krv má päť hlavných funkcií - transport, obranu, reguláciu teploty, udržiavanie rovnováhy a zrážanie!
Zloženie krvi
Krvná plazma tvorí asi 55% krvi a vyzerá ako žltkastá tekutina. Je to vlastne naša "riekaˮ - z 90% je to voda, ale prenáša v sebe všetko potrebné: bielkoviny, glukózu, soli, hormóny aj vitamíny. Zároveň odstraňuje odpadové látky, ktoré telo nepotrebuje.
Krvné telieska tvoria zvyšných 45% a každé má svoju špeciálnu misiu. Červené krvinky sú najpočetnejšie - v jednom mililitri ich máme milióny! Majú zvláštny tvar sploštených diskov a sú plné hemoglobínu, červeného farbiva s železom.
Hemoglobín je tvoj najlepší kamarát pri dýchaní - viaže kyslík v pľúcach a rozvážia ho do celého tela. Červené krvinky žijú asi 120 dní, potom sa rozpadnú a telo si vytvorí nové.
Vedel si, že červené krvinky nemajú jadro? Vďaka tomu sa do nich zmestí viac hemoglobínu na prenos kyslíka!
Biele krvinky a krvné doštičky
Biele krvinky sú tvoji osobní bodyguardi! Je ich menej ako červených, ale sú väčšie a majú jadro. Každý deň bojujú proti baktériám, vírusom a iným škodlivinám, ktoré sa dostanú do tela.
Niektoré biele krvinky dokážu "požrať" nepriateľov (nazýva sa to fagocytóza), iné vyrábajú špeciálne zbrane - protilátky. Keď si chorý, ich počet sa zvýši, pretože telo potrebuje viac bojovníkov.
Krvné doštičky sú najmenšie a fungujú ako rýchla zásahová jednotka. Keď sa porežeš, okamžite sa zhlukujú na mieste poranenia a vytvoria krvnú zrazeninu - takú prirodzenú náplasť. Žijú len 5-9 dní, ale stačí im to na ochranu pred vykrvácaním.
Zaujímavosť: Keď máš infekciu, lekár ti môže urobiť krvný obraz - počíta biele krvinky, aby videl, ako tvoje telo bojuje!
Funkcie krvi v praxi
Krv má päť super dôležitých úloh, ktoré ti zachraňujú život každú sekundu. Transportná funkcia je najzrejmejšia - rozvážia kyslík, živiny a hormóny, zároveň odvážia odpad ako oxid uhličitý a močovinu.
Obranná funkcia znamená, že tvoje biele krvinky neustále hliadkujú a ničia všetko nebezpečné. Termoregulačná funkcia udržuje tvoju teplotu na 37°C - krv rozváža teplo po celom tele.
Krv tiež udržiava stálé vnútorné prostredie - reguluje množstvo vody, solí a pH. A samozrejme, zrážanie krvi ťa ochráni pred vykrvácaním pri každom poranení.
Praktický tip: Ak si unavený, možno ti chýba železo na tvorbu hemoglobínu. Jedz špenát, červené mäso alebo strukoviny!
Príklady z reálneho života
Keď sa porežeš, uvidíš krv v akcii! Krvné doštičky sa okamžite zhluknu, vytvoria zrazeninu s bielkovinami z plazmy a zastavia krvácanie. Neskôr sa z toho stane chrasta, pod ktorou sa rana zahojí.
Anémia (chudokrvnosť) vznikne, keď máš málo železa. Telo nedokáže vyrobiť dostatok hemoglobínu, červené krvinky prenášajú menej kyslíka a ty si unavený a slabý. Preto je železo v strave také dôležité!
Keď zješ niečo pokazené a dostanú sa ti do tela baktérie, biele krvinky okamžite zasahjú. Fagocyty "požerú" škodlivé baktérie a lymfocyty vytvoria protilátky na ich zničenie.
Zaujímavé: Tvoje telo vyrobí nové červené krvinky každé 3-4 mesiace - kostná dreň pracuje nonstop!
Rýchly súhrn na test
Krv = krvná plazma (55%) + krvné telieska (45%). Plazma je žltkastá tekutina s vodou, bielkovinami a živinami. Krvné telieska majú tri typy s rôznymi úlohami.
Červené krvinky (erytrocyty) obsahujú hemoglobín s železom a prenášajú kyslík. Biele krvinky (leukocyty) sú obrancovia proti chorobám. Krvné doštičky (trombocyty) zastavujú krvácanie.
Päť funkcií krvi: transport látok, obrana pred chorobami, regulácia teploty, udržiavanie rovnováhy a zrážanie. Bez ktorejkoľvek z týchto funkcií by sme nemohli prežiť.
Na záver: Každá kvapka krvi obsahuje milióny buniek, ktoré pre teba pracujú 24/7 - oceň si túto úžasnú tekutinu!
We thought you’d never ask...
What is the Knowunity AI companion?
Our AI companion is specifically built for the needs of students. Based on the millions of content pieces we have on the platform we can provide truly meaningful and relevant answers to students. But its not only about answers, the companion is even more about guiding students through their daily learning challenges, with personalised study plans, quizzes or content pieces in the chat and 100% personalisation based on the students skills and developments.
Where can I download the Knowunity app?
You can download the app in the Google Play Store and in the Apple App Store.
Is Knowunity really free of charge?
That's right! Enjoy free access to study content, connect with fellow students, and get instant help – all at your fingertips.
Most popular content in Biológia
Most popular content
Can't find what you're looking for? Explore other subjects.
Students love us — and so will you.
4.6/5
App Store
4.7/5
Google Play
The app is very easy to use and well designed. I have found everything I was looking for so far and have been able to learn a lot from the presentations! I will definitely use the app for a class assignment! And of course it also helps a lot as an inspiration.
Stefan S
iOS user
This app is really great. There are so many study notes and help [...]. My problem subject is French, for example, and the app has so many options for help. Thanks to this app, I have improved my French. I would recommend it to anyone.
Samantha Klich
Android user
Wow, I am really amazed. I just tried the app because I've seen it advertised many times and was absolutely stunned. This app is THE HELP you want for school and above all, it offers so many things, such as workouts and fact sheets, which have been VERY helpful to me personally.
Anna
iOS user
I think it’s very much worth it and you’ll end up using it a lot once you get the hang of it and even after looking at others notes you can still ask your Artificial intelligence buddy the question and ask to simplify it if you still don’t get it!!! In the end I think it’s worth it 😊👍 ⚠️Also DID I MENTION ITS FREEE YOU DON’T HAVE TO PAY FOR ANYTHING AND STILL GET YOUR GRADES IN PERFECTLY❗️❗️⚠️
Thomas R
iOS user
Knowunity is the BEST app I’ve used in a minute. This is not an ai review or anything this is genuinely coming from a 7th grade student (I know 2011 im young) but dude this app is a 10/10 i have maintained a 3.8 gpa and have plenty of time for gaming. I love it and my mom is just happy I got good grades
Brad T
Android user
Not only did it help me find the answer but it also showed me alternative ways to solve it. I was horrible in math and science but now I have an a in both subjects. Thanks for the help🤍🤍
David K
iOS user
The app's just great! All I have to do is enter the topic in the search bar and I get the response real fast. I don't have to watch 10 YouTube videos to understand something, so I'm saving my time. Highly recommended!
Sudenaz Ocak
Android user
In school I was really bad at maths but thanks to the app, I am doing better now. I am so grateful that you made the app.
Greenlight Bonnie
Android user
I found this app a couple years ago and it has only gotten better since then. I really love it because it can help with written questions and photo questions. Also, it can find study guides that other people have made as well as flashcard sets and practice tests. The free version is also amazing for students who might not be able to afford it. Would 100% recommend
Aubrey
iOS user
Best app if you're in Highschool or Junior high. I have been using this app for 2 school years and it's the best, it's good if you don't have anyone to help you with school work.😋🩷🎀
Marco B
iOS user
THE QUIZES AND FLASHCARDS ARE SO USEFUL AND I LOVE Knowunity AI. IT ALSO IS LITREALLY LIKE CHATGPT BUT SMARTER!! HELPED ME WITH MY MASCARA PROBLEMS TOO!! AS WELL AS MY REAL SUBJECTS ! DUHHH 😍😁😲🤑💗✨🎀😮
Elisha
iOS user
This app is phenomenal down to the correct info and the various topics you can study! I greatly recommend it for people who struggle with procrastination and those who need homework help. It has been perfectly accurate for world 1 history as far as I’ve seen! Geometry too!
Paul T
iOS user
The app is very easy to use and well designed. I have found everything I was looking for so far and have been able to learn a lot from the presentations! I will definitely use the app for a class assignment! And of course it also helps a lot as an inspiration.
Stefan S
iOS user
This app is really great. There are so many study notes and help [...]. My problem subject is French, for example, and the app has so many options for help. Thanks to this app, I have improved my French. I would recommend it to anyone.
Samantha Klich
Android user
Wow, I am really amazed. I just tried the app because I've seen it advertised many times and was absolutely stunned. This app is THE HELP you want for school and above all, it offers so many things, such as workouts and fact sheets, which have been VERY helpful to me personally.
Anna
iOS user
I think it’s very much worth it and you’ll end up using it a lot once you get the hang of it and even after looking at others notes you can still ask your Artificial intelligence buddy the question and ask to simplify it if you still don’t get it!!! In the end I think it’s worth it 😊👍 ⚠️Also DID I MENTION ITS FREEE YOU DON’T HAVE TO PAY FOR ANYTHING AND STILL GET YOUR GRADES IN PERFECTLY❗️❗️⚠️
Thomas R
iOS user
Knowunity is the BEST app I’ve used in a minute. This is not an ai review or anything this is genuinely coming from a 7th grade student (I know 2011 im young) but dude this app is a 10/10 i have maintained a 3.8 gpa and have plenty of time for gaming. I love it and my mom is just happy I got good grades
Brad T
Android user
Not only did it help me find the answer but it also showed me alternative ways to solve it. I was horrible in math and science but now I have an a in both subjects. Thanks for the help🤍🤍
David K
iOS user
The app's just great! All I have to do is enter the topic in the search bar and I get the response real fast. I don't have to watch 10 YouTube videos to understand something, so I'm saving my time. Highly recommended!
Sudenaz Ocak
Android user
In school I was really bad at maths but thanks to the app, I am doing better now. I am so grateful that you made the app.
Greenlight Bonnie
Android user
I found this app a couple years ago and it has only gotten better since then. I really love it because it can help with written questions and photo questions. Also, it can find study guides that other people have made as well as flashcard sets and practice tests. The free version is also amazing for students who might not be able to afford it. Would 100% recommend
Aubrey
iOS user
Best app if you're in Highschool or Junior high. I have been using this app for 2 school years and it's the best, it's good if you don't have anyone to help you with school work.😋🩷🎀
Marco B
iOS user
THE QUIZES AND FLASHCARDS ARE SO USEFUL AND I LOVE Knowunity AI. IT ALSO IS LITREALLY LIKE CHATGPT BUT SMARTER!! HELPED ME WITH MY MASCARA PROBLEMS TOO!! AS WELL AS MY REAL SUBJECTS ! DUHHH 😍😁😲🤑💗✨🎀😮
Elisha
iOS user
This app is phenomenal down to the correct info and the various topics you can study! I greatly recommend it for people who struggle with procrastination and those who need homework help. It has been perfectly accurate for world 1 history as far as I’ve seen! Geometry too!
Paul T
iOS user
Krv – vlastnosti, funkcie a jej významné zložky
Krv je neuveriteľne fascinujúca tekutina, ktorá každú sekundu zachraňuje náš život! Bez nej by naše bunky nemohli dýchať a bojovať proti chorobám. Poďme sa pozrieť na to, z čoho sa skladá a ako funguje táto životne dôležitá súčasť nášho tela.
Krv - zloženie a funkcia
Krv nie je len obyčajná červená tekutina - je to vlastne špeciálne tekuté tkanivo, ktoré prúdi v našich cievach ako rýchla doprava. Predstav si ju ako mestskú hromadnú dopravu, ktorá neustále rozvážá potrebné veci a odvážá odpad.
Krv sa skladá z dvoch hlavných častí: tekutej krvnej plazmy a krvných teliesok plávajúcich v nej. Každá časť má svoje dôležité úlohy a bez ktorejkoľvek z nich by sme nemohli prežiť.
Najdôležitejšie pojmy, ktoré musíš vedieť: červené krvinky (prenášajú kyslík), biele krvinky (bojujú proti chorobám), krvné doštičky (zastavujú krvácanie) a hemoglobín (červené farbivo s železom).
Tip: Zapamätaj si, że krv má päť hlavných funkcií - transport, obranu, reguláciu teploty, udržiavanie rovnováhy a zrážanie!
Sign up to see the contentIt's free!
Access to all documents
Improve your grades
Join milions of students
Zloženie krvi
Krvná plazma tvorí asi 55% krvi a vyzerá ako žltkastá tekutina. Je to vlastne naša "riekaˮ - z 90% je to voda, ale prenáša v sebe všetko potrebné: bielkoviny, glukózu, soli, hormóny aj vitamíny. Zároveň odstraňuje odpadové látky, ktoré telo nepotrebuje.
Krvné telieska tvoria zvyšných 45% a každé má svoju špeciálnu misiu. Červené krvinky sú najpočetnejšie - v jednom mililitri ich máme milióny! Majú zvláštny tvar sploštených diskov a sú plné hemoglobínu, červeného farbiva s železom.
Hemoglobín je tvoj najlepší kamarát pri dýchaní - viaže kyslík v pľúcach a rozvážia ho do celého tela. Červené krvinky žijú asi 120 dní, potom sa rozpadnú a telo si vytvorí nové.
Vedel si, že červené krvinky nemajú jadro? Vďaka tomu sa do nich zmestí viac hemoglobínu na prenos kyslíka!
Sign up to see the contentIt's free!
Access to all documents
Improve your grades
Join milions of students
Biele krvinky a krvné doštičky
Biele krvinky sú tvoji osobní bodyguardi! Je ich menej ako červených, ale sú väčšie a majú jadro. Každý deň bojujú proti baktériám, vírusom a iným škodlivinám, ktoré sa dostanú do tela.
Niektoré biele krvinky dokážu "požrať" nepriateľov (nazýva sa to fagocytóza), iné vyrábajú špeciálne zbrane - protilátky. Keď si chorý, ich počet sa zvýši, pretože telo potrebuje viac bojovníkov.
Krvné doštičky sú najmenšie a fungujú ako rýchla zásahová jednotka. Keď sa porežeš, okamžite sa zhlukujú na mieste poranenia a vytvoria krvnú zrazeninu - takú prirodzenú náplasť. Žijú len 5-9 dní, ale stačí im to na ochranu pred vykrvácaním.
Zaujímavosť: Keď máš infekciu, lekár ti môže urobiť krvný obraz - počíta biele krvinky, aby videl, ako tvoje telo bojuje!
Sign up to see the contentIt's free!
Access to all documents
Improve your grades
Join milions of students
Funkcie krvi v praxi
Krv má päť super dôležitých úloh, ktoré ti zachraňujú život každú sekundu. Transportná funkcia je najzrejmejšia - rozvážia kyslík, živiny a hormóny, zároveň odvážia odpad ako oxid uhličitý a močovinu.
Obranná funkcia znamená, že tvoje biele krvinky neustále hliadkujú a ničia všetko nebezpečné. Termoregulačná funkcia udržuje tvoju teplotu na 37°C - krv rozváža teplo po celom tele.
Krv tiež udržiava stálé vnútorné prostredie - reguluje množstvo vody, solí a pH. A samozrejme, zrážanie krvi ťa ochráni pred vykrvácaním pri každom poranení.
Praktický tip: Ak si unavený, možno ti chýba železo na tvorbu hemoglobínu. Jedz špenát, červené mäso alebo strukoviny!
Sign up to see the contentIt's free!
Access to all documents
Improve your grades
Join milions of students
Príklady z reálneho života
Keď sa porežeš, uvidíš krv v akcii! Krvné doštičky sa okamžite zhluknu, vytvoria zrazeninu s bielkovinami z plazmy a zastavia krvácanie. Neskôr sa z toho stane chrasta, pod ktorou sa rana zahojí.
Anémia (chudokrvnosť) vznikne, keď máš málo železa. Telo nedokáže vyrobiť dostatok hemoglobínu, červené krvinky prenášajú menej kyslíka a ty si unavený a slabý. Preto je železo v strave také dôležité!
Keď zješ niečo pokazené a dostanú sa ti do tela baktérie, biele krvinky okamžite zasahjú. Fagocyty "požerú" škodlivé baktérie a lymfocyty vytvoria protilátky na ich zničenie.
Zaujímavé: Tvoje telo vyrobí nové červené krvinky každé 3-4 mesiace - kostná dreň pracuje nonstop!
Sign up to see the contentIt's free!
Access to all documents
Improve your grades
Join milions of students
Rýchly súhrn na test
Krv = krvná plazma (55%) + krvné telieska (45%). Plazma je žltkastá tekutina s vodou, bielkovinami a živinami. Krvné telieska majú tri typy s rôznymi úlohami.
Červené krvinky (erytrocyty) obsahujú hemoglobín s železom a prenášajú kyslík. Biele krvinky (leukocyty) sú obrancovia proti chorobám. Krvné doštičky (trombocyty) zastavujú krvácanie.
Päť funkcií krvi: transport látok, obrana pred chorobami, regulácia teploty, udržiavanie rovnováhy a zrážanie. Bez ktorejkoľvek z týchto funkcií by sme nemohli prežiť.
Na záver: Každá kvapka krvi obsahuje milióny buniek, ktoré pre teba pracujú 24/7 - oceň si túto úžasnú tekutinu!
We thought you’d never ask...
What is the Knowunity AI companion?
Our AI companion is specifically built for the needs of students. Based on the millions of content pieces we have on the platform we can provide truly meaningful and relevant answers to students. But its not only about answers, the companion is even more about guiding students through their daily learning challenges, with personalised study plans, quizzes or content pieces in the chat and 100% personalisation based on the students skills and developments.
Where can I download the Knowunity app?
You can download the app in the Google Play Store and in the Apple App Store.
Is Knowunity really free of charge?
That's right! Enjoy free access to study content, connect with fellow students, and get instant help – all at your fingertips.
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Students love us — and so will you.
4.6/5
App Store
4.7/5
Google Play
The app is very easy to use and well designed. I have found everything I was looking for so far and have been able to learn a lot from the presentations! I will definitely use the app for a class assignment! And of course it also helps a lot as an inspiration.
Stefan S
iOS user
This app is really great. There are so many study notes and help [...]. My problem subject is French, for example, and the app has so many options for help. Thanks to this app, I have improved my French. I would recommend it to anyone.
Samantha Klich
Android user
Wow, I am really amazed. I just tried the app because I've seen it advertised many times and was absolutely stunned. This app is THE HELP you want for school and above all, it offers so many things, such as workouts and fact sheets, which have been VERY helpful to me personally.
Anna
iOS user
I think it’s very much worth it and you’ll end up using it a lot once you get the hang of it and even after looking at others notes you can still ask your Artificial intelligence buddy the question and ask to simplify it if you still don’t get it!!! In the end I think it’s worth it 😊👍 ⚠️Also DID I MENTION ITS FREEE YOU DON’T HAVE TO PAY FOR ANYTHING AND STILL GET YOUR GRADES IN PERFECTLY❗️❗️⚠️
Thomas R
iOS user
Knowunity is the BEST app I’ve used in a minute. This is not an ai review or anything this is genuinely coming from a 7th grade student (I know 2011 im young) but dude this app is a 10/10 i have maintained a 3.8 gpa and have plenty of time for gaming. I love it and my mom is just happy I got good grades
Brad T
Android user
Not only did it help me find the answer but it also showed me alternative ways to solve it. I was horrible in math and science but now I have an a in both subjects. Thanks for the help🤍🤍
David K
iOS user
The app's just great! All I have to do is enter the topic in the search bar and I get the response real fast. I don't have to watch 10 YouTube videos to understand something, so I'm saving my time. Highly recommended!
Sudenaz Ocak
Android user
In school I was really bad at maths but thanks to the app, I am doing better now. I am so grateful that you made the app.
Greenlight Bonnie
Android user
I found this app a couple years ago and it has only gotten better since then. I really love it because it can help with written questions and photo questions. Also, it can find study guides that other people have made as well as flashcard sets and practice tests. The free version is also amazing for students who might not be able to afford it. Would 100% recommend
Aubrey
iOS user
Best app if you're in Highschool or Junior high. I have been using this app for 2 school years and it's the best, it's good if you don't have anyone to help you with school work.😋🩷🎀
Marco B
iOS user
THE QUIZES AND FLASHCARDS ARE SO USEFUL AND I LOVE Knowunity AI. IT ALSO IS LITREALLY LIKE CHATGPT BUT SMARTER!! HELPED ME WITH MY MASCARA PROBLEMS TOO!! AS WELL AS MY REAL SUBJECTS ! DUHHH 😍😁😲🤑💗✨🎀😮
Elisha
iOS user
This app is phenomenal down to the correct info and the various topics you can study! I greatly recommend it for people who struggle with procrastination and those who need homework help. It has been perfectly accurate for world 1 history as far as I’ve seen! Geometry too!
Paul T
iOS user
The app is very easy to use and well designed. I have found everything I was looking for so far and have been able to learn a lot from the presentations! I will definitely use the app for a class assignment! And of course it also helps a lot as an inspiration.
Stefan S
iOS user
This app is really great. There are so many study notes and help [...]. My problem subject is French, for example, and the app has so many options for help. Thanks to this app, I have improved my French. I would recommend it to anyone.
Samantha Klich
Android user
Wow, I am really amazed. I just tried the app because I've seen it advertised many times and was absolutely stunned. This app is THE HELP you want for school and above all, it offers so many things, such as workouts and fact sheets, which have been VERY helpful to me personally.
Anna
iOS user
I think it’s very much worth it and you’ll end up using it a lot once you get the hang of it and even after looking at others notes you can still ask your Artificial intelligence buddy the question and ask to simplify it if you still don’t get it!!! In the end I think it’s worth it 😊👍 ⚠️Also DID I MENTION ITS FREEE YOU DON’T HAVE TO PAY FOR ANYTHING AND STILL GET YOUR GRADES IN PERFECTLY❗️❗️⚠️
Thomas R
iOS user
Knowunity is the BEST app I’ve used in a minute. This is not an ai review or anything this is genuinely coming from a 7th grade student (I know 2011 im young) but dude this app is a 10/10 i have maintained a 3.8 gpa and have plenty of time for gaming. I love it and my mom is just happy I got good grades
Brad T
Android user
Not only did it help me find the answer but it also showed me alternative ways to solve it. I was horrible in math and science but now I have an a in both subjects. Thanks for the help🤍🤍
David K
iOS user
The app's just great! All I have to do is enter the topic in the search bar and I get the response real fast. I don't have to watch 10 YouTube videos to understand something, so I'm saving my time. Highly recommended!
Sudenaz Ocak
Android user
In school I was really bad at maths but thanks to the app, I am doing better now. I am so grateful that you made the app.
Greenlight Bonnie
Android user
I found this app a couple years ago and it has only gotten better since then. I really love it because it can help with written questions and photo questions. Also, it can find study guides that other people have made as well as flashcard sets and practice tests. The free version is also amazing for students who might not be able to afford it. Would 100% recommend
Aubrey
iOS user
Best app if you're in Highschool or Junior high. I have been using this app for 2 school years and it's the best, it's good if you don't have anyone to help you with school work.😋🩷🎀
Marco B
iOS user
THE QUIZES AND FLASHCARDS ARE SO USEFUL AND I LOVE Knowunity AI. IT ALSO IS LITREALLY LIKE CHATGPT BUT SMARTER!! HELPED ME WITH MY MASCARA PROBLEMS TOO!! AS WELL AS MY REAL SUBJECTS ! DUHHH 😍😁😲🤑💗✨🎀😮
Elisha
iOS user
This app is phenomenal down to the correct info and the various topics you can study! I greatly recommend it for people who struggle with procrastination and those who need homework help. It has been perfectly accurate for world 1 history as far as I’ve seen! Geometry too!
Paul T
iOS user