If you're seeing this message, it means we're having trouble loading external resources on our website.

თუ ვებფილტრს იყენებთ, დარწმუნდით, რომ *.kastatic.org და *.kasandbox.org დომენები არ არის დაბლოკილი.

ძირითადი მასალა

კურსი: ბიოლოგია > თემა 21

გაკვეთილი 1: ევოლუცია და ბუნებრივი გადარჩევა

შესავალი ევოლუციასა და ბუნებრივ გადარჩევაში

შესავალი იმაში, თუ როგორ განიცდიან ორგანიზმთა ჯგუფები ევოლუციას და როგორ შეუძლია ბუნებრივ გადარჩევას, მიგვიყვანოს ევოლუციამდე. შემქმნელია სალ ხანი.

გსურთ, შეუერთდეთ დისკუსიას?

გესმით ინგლისური? დააწკაპუნეთ აქ და გაეცანით განხილვას ხანის აკადემიის ინგლისურენოვან გვერდზე.

ვიდეოს აღწერა

I'm Widow she may be the case out brought people - the zubur that what tells me sneer about yesterday's remitted arrest Olga boule de Arthur in there pretty Red Bull team as a and this Tamara say we'll see how you do look at smallest how she has read mukti solicits question why old SIA the only which means I'm gonna give at how Jesuit here what were lost kids no but her smile was she still hobo my name is Henry was my money she's logistic word done with subclinical word outfits a car sells car demolished a division approach the tell Shyam are truly variant and my missus rather maintenance Casa bully the bolus sabalo Jamshid gas a mark Latimer flood normally who Adam uni Tomoko Saloni what oil asado what corner my mankind says activate the whoopsie after my enemy and mr. Kravitz October processor absurdly unreal with my money was on Potrero medulla Lukasik never on camera drama Thomas my James Dean and share with Lee the tonton who dug out the shame the Catawba she championed actor advantage time all programmer totally indexed cause I miss machine like Matt have on cattle would emerge with the era she thought I was again me the subordinate commerce Padma sodomy any any you gonna cut me orienting room Opilio rats hado shot goes washes him most attack was mad Alaska helium so she was washed Iost [ __ ] cargo Lisa Hoberman Italian suit down wash Lee's Shh my mom is gonna miss your towel in Jamie some hot room eg eyes muttered ABC Melissa he's veritable da Mosta me too much money it's called cutouts with our own music is Alfred available all the shame textile machine that all shame the guitar away but they would offer dr. Basilica Street casaba Jam she rammed inimitably shindig me rate ossificans LG Sara warranty [ __ ] that it because I associate Nazira so give her them Estonia the rules his cocoon about sixty rabbits are moved giveaways to processed walls in he's gonna be awesome Hawaii I mean the Gil Thomas situation where they will see are bullies over Libya Messiah as actively processing historic knee bar room asana tell me who knew Brugada Chihuahua and Pune blue is Alexia Rommel to brought ghoulish hopes Sasaki below Gainey with Connie Warren them is a muchos motive true that all one done with ultras si worry train which tromsø God Sasha big in her so so are yet see AV you a demeanor which room - good a trainee Gossard Chronicle serums armory denote Hazuki eight sequence Cauchy Campbell Award margulies who gave double his oxic Nevada Khalid misak's suspect will be a session the glasses she ain't gonna suck it solution to our yet CS oxide build a second travel pillow improv Arowana all those hollow organ is me not Sahaj ignited key who never got a chocolate sauce a moment is too scary movie Avedon campy rupee bully Karen Purina comes near wholesale soccer league in a which corny organism scattered showers I moved to Prague argotron cockatrice soo berm adult can elude our service the peplum Zuckerberg heart lot armed in Odessa crema Graham as August OSHA so broke we have people people more really a Pella carcinoma and the target rates are with immigrant I say it Sarah Lou give to our regime bacteria papilla the salad campiglio Shiseido with Mukunda Coppola leasehold estate reshape a little bit from a spell Omaha's Conda tetra not Swiss Perry - shall we go blabbing on recipe 8 she hurts what rooms not a harsh aggregate mu is eating the energy it should mark slash avoid cross room you'll be economical is it she's read o box third corner is a record Palazzo jojoba signet unpublished circle but it's O War II insist what is all gears condo pro meta cope little gear to pro made at e3 or so gears condo crow knock living oh [ __ ] so guilty population to Oishi what's nuts is very walkable for our boobs done so get Jim to how shall we that OSHA - ho ho Arion Theresa house or minutes Ramos STDs are Kondabolu B&G that you Pro shall go click on done a whole lot HTTP super shall we on how is reserved that's it's horribly Cholula blue garish exile worry English sudden multiple the Hindu salutes yeah he seems a limpid near at Horeb then tire Arab Navy can school bus and one murder anybody eight people as me always say each party room matters garlic oregano accountant isn't a never reversed hold in the harbor adsorbed incarnate automatic oregano Bassam east coast elope emission the res mostly industrial SIA knocked the Deardon with comma oppa higher synergist with productive Assad s to our till Romans come we hope the others pública has never done it would sign our hips hips Rama's gun Cunningham which we approach our Paris not appease the arm economist in Arezzo permitted Mujica ha de s twist hate he studied Emerson what people will do touch all hesitant Holmen community oriented toward him he stole his butter fragment he was a stout short ultra tested always hey how hot is people everywhere him I'm it observer Scotty tigress club around the bleep show reason we finished now yet Shannon responds in aggravation grits Malta partly tapara unhappy sir calm down sorry pony possible John Chisholm octa no miss pepper almond soup remit a shower horn prevent a jar of the shall we call a B&B Bella's insult shouted Conda open a collaboration she assumption Ariane responds I'm a z-test Republican [ __ ] with shoddy who sharpens mark like ice-t 350 and by Bella from our DHS engineer we came with a cheese we Dre shout police pepper like our without hot rock a throttled arches welcome me to tell what resumix our body shall we Shepherd with a pillow from our TV some snake in the cheetah stress tester has a we dream hope results out has a we Dre a 3-phase Bella she's a balmy sad mocked about the is Ramirez or GT ethanol usage and always more that's a loop from a tad 12 more stable dumbass these people are methods from OC started repairing the she serves the tirtagangga she's a mock to build on from from a tawdry product as master - a very low base pebble and washed our own karma bureau babies she's a bomb Assad from that he'll Sakura Kenny Konya Xiao Jie parabolas she's a mommy said our I would say tonight shit's whack our monkey neva care sheets will abroad in miss Cameron people reacted was not good any sinister than reproduction he said in the Sutra Merle devotee no gods shibez often people with the dragon was mocked is Robloxia she sang - vodka is a shaft enveloping and mocked up America Durga what a car oppler active participant possible notice Alexia couch towel osteochondroma ghana pupa the real word tips people Oscar show linear functions of the Jirga role the same alternative popular we cannot wooden actively we see a room dr. Murray reproduction come with us a few ball Leanna cheats wala a new SAP abolished we hope that some of the 20% II was the holes a shepherd a bit tetra be Sharpton a fleece a metropolis a shield a stiffness importantly social papillary Olin I said conda true segment cuddly processor was a stored old ratio Delta charmed our second TV do that you damn koala bears vigor minutes a trauma also holds as a drewscott similarily she's no Pro mallet smartest traced walls in the old the buggy distress organ is risky the Honolulu Service Margaret II want a safe Contreras we loose in Volusia magazine or Theresa said curry Joshua LeDoux Reforma socialista sauce on started socialism not scientist we do our chat solutions karate lab machine checks that now who are in a hotel calm day I will resume our children guitarists along Garcia holy Canada guru masala a success meteor Burma's our gosh a circular metabolism your Dodge Neon Gunilla be our gas new era para guardar de Luna Garza the most noticeably kinetic or muscle thermal chill by was an enemy and the enemy local tahoe trans organic fear is car : will see walls gap you are in the gunshot creepy spews sock wanted arsenal check chariot the air Hakone a transcript agree with epidemia be moved up three chairs come out so let's calm everybody clip is epidemic move elicits organ if she Shh Reba creepy Sri Lucy he sick active Admiral de ba - transcripts will lose every demo set up with the concert solid Saloni market inner system services car got east all chinook put milked every twist a mercury every other atom is at you no matter whatever to massage ads specifically be wrong miss measure which adds a dimension early system surgery diving vomits no venom we losers she's a bomb shatters as the 80s to see how much Moby Dick nabob a dimension Rudy the smear a pseudo the mr. Wordsworth Adam assume that he must erase copula to may creep is reducing oil as regime most artists always Pacific Kumar carry ox popular creepies - a bomb shitty trip the omniscient it cannot grow samsara charitable we loose aroma stays or it specifically specifically seal oxide a pizza it was knocked word can't reverse a sword I'm tempted by imitate this cow Moo Shaba creepy Samata machine the bastard room catalyst on a CPM which at Scarabus epidemia miss camo Roman atom is emitted while a demented a salir de emitter emitted which Louis groupies will loose in a hot rock oriya tamil eesha specific or neutral we will se two different limits story damn mark any beast in air that you owe me more - Lee - is Merced Chris Willis Organa she'd return on Russia cannot Gupta Roberts Roxanne it's a mood Sofia [ __ ] are so sorry Attila she said my receptions I was worried it's a ramen table mood at City host computer zalien TTL dinner with saliency drumroll diba with lucy twins organ if she that ostrich elbow 800 million euros his warring and she asked are going Mutasa malta muffs Thomas got Near East market set up with Michelle huacachina Sami marketing ungodly au revoir carry on his organs holy last was the HT gongs called a TC visit local team is coming the wrong car kunwari at SIA iris will reserve Saheb Shirley's it's a hope short shots how to mock squamous our body other Mansa Musa Dagh it's his from Volusia necrosis or e market setup is destroyed I'm or Markarian reception at groups she survives the new system estados de ba kua lice will receive Ramos at kashkaval marker back setup it's a mission the grid's adamance Organa she eliminate the vihuela will receive almost assault marker le conte the pizza cutter chaplains can squabbling Kenny's Hanukkah squabbling will receive a Roman thermistor ammeter which is held several kilometers canticle it's all about the boys can't a Cornish Navy tell me Needham at congruent the very old organ if you'd energy into service Scotty singing the heart Dabney annum concurrent dog re-mose ADA camera living TT Alberto B TT now do you know with October a lot smoked up we do smoke and it said that Suliban twit when we do smoky era so good at Chilean Pope was a schmuck that's all about the boy miss camo Rochelle sorrel Gainey's Connie we receive a activist damn around in the store this just creepy Zebedee Montgomery bus on railroad ecco creepies with Lucy autumn Jared massacree City marketable dramas has 20 lanes Bolivar schnapps tomato mozzarella her cello dodgy Martucci get rebus Russo what I'm Judy you angry peace rusik Shh Lily say that will remark ever be this comes with our extension my immediate ma da Wow toggle Martha creepy yesterday all seaside motel who never got a shock mode Nutella Miguel to most entities reward to developers project people smuggle it's a hoe associate Willa garnished bacteria with modalities bacteria which we lose the viscosity transferring pictures as was what our the web's the train reached from horses back there how are the boxes no me without antibiotic oil are in the head would lead a cardiac you mean they give antibiotics are diminished notes or twas she hates the Warriors honeymoon a lotta maximal shake off those antibiotics comma an abyss can that reminds them in sahaja yoga antibodies comic and it was Ahmed Muslim he does a bit tacky nice shot antibiotics that must allocate with rot on the origins were gonna share is cargo unity peace bacteria Tamra all day bomb occurs we lose his causal Karen Lewis precision Chism of the C serum cargo let's never mock this canticle Massa wash tell EE for Miss Casswell esophagus cosmos are observable odd noggins Colgan into curry masala scone a bacteria gosh this damn bacterias couch this AHA Lisa T Guinea Rommel it's mask this resistant to antibiotics at me resistant to finish nice romantic atmosphere oppressor Douglas tog lips Tom needs of the bath Savio biscuit earthquake loss from mallets resistant which domestic bacteria he obese is ravaged kwaity pyramides Andrew dictionaries residental Isis rates with mogul ROM October disaster are mahkumaat insolvency resistant which time Frankie bacteria smile train antibiotics - move to reduce a bit hundreds cannot go to oil a bacteria card a Marissa Tasha sauce tastes bacteria are concurrent - Gary machine is tightest active welcome robust possible jump she a huge table rooms are Madrid's a hellish tummy bug Theresa from Moses aunt will develop super dark lips the Rhodes's bacteria cadets Emma it's a demeanor whose father means it's a madam is called omerta body giving back their own impact similar i'm judy what the music is antibiotic in a very mcquoddy son must be uncommon wasn't able to get astor dimittimus a home in the ragam philtrum medicine chief fishery de heiress who are out here on post antibiotic observe certain protocol anguish antibiotic a bouquet we hurry mock us back towards a little resistant to estimate our movements camara Kamara permit were of antibiotic obsessive are amazing sheets only litter all trees are asaji reduce me Reba misty-eyed to get to the able to communicate with Romberg syllable ers rentability kamijo time the move with antibiotics okay missus is key don t argument is get sadena but he mishit or autonomy authenticated over to the blood target Sumatra's hold a committee in their education is take miss pandalus now Gary's armor telly estimates nearly suppose real argument to do some over Lewis another personal tastes horrible sister boon arrivederci Nutella Magali t-midi box a medium the GUI Kate pseudonym a Woolsey error is a doctor protested sisterís organized by organic Sushil syllabus are a medium roast avocado Chihuahua navigator John Tsukuba Signet we are Cebu warriorship shiko dachi Boca is far yet sia promises inch acrylic RM o yobu beside me Reba yes Allegheny Health arimathea Duchess album is a true the season against the reproductology camuto some sakyo be signet paparazzi a gambrel debe um healthination service corny sorry baby