hi I'm Banna hi I'm Courtney hi I'm Kiren hi I'm Carly and we're doing response to the environment what does that mean good question from in the back response to the environment is the way an organism reacts or responds to changes in its environment it's the response to a stimuli it can be Behavioral or physiological and can be learned or innate so there's five different groups of vertebrates fish amphibians reptiles birds and mammals we I think I know something about this reptiles detect heat and humidity to regulate body temperature amphibians move between microclimates to keep their body within optimal range some birds migrate to warmer environments I know this some mammals when in cold environments shiver but when they're in hot they sweat certain fish are drawn to light because they associate it with their food source I'm confused well maybe some examples would help [Music] you did you see how her pupil contracted right there yeah it was because of the change of light in the surr surrounding environment why did all those people Flinch well it's because they were responding to a threat from the environment smell these flowers that one smells good that one doesn't so why did I like back away when I didn't like that smell it's just your body's way of reacting to a badly smelling environment that was the thing I was like go get Ricardo tell him to come over here and freaking get it in so they get in right they like okay I'm going to put this down pay we're going to trade in the phone go okay so you're going to have 30 days to home once everything is downloaded to the other home why did she come back inside to get her jacket well it's really cold outside and living things like to maintain homeostasis so in response to the cold some vertebrates like humans will produce Goosebumps or shiver to help regulate their body temperature or in this case they'll come inside and grab a jacket so anyways as I was saying about the whole situation so like why did they react differently like one ah one well there's plenty of different fear responses like fight flight and freeze some people have a natural response to start swinging on a threat some people get so scared that they just stop moving that's more like the gasp that we saw and flight is more like what we saw with Sophia you know when she's tried to get away from me you know but everyone has a different natural fear response and regardless it's a response to the environment a few moments later I think I'm starting to get this but why does it even matter the ability of Verte Brits to detect changes in their environment and actively change in response to those external factors individually is part of a classifies vertebrates as being alive at all being able to respond to stimuli allows vertebrates to do a number of things like what like evade Predators seek protection in extreme environmental conditions and even pursue potential mates so does anyone have any more questions well guess what guys I have some prepared for you what is the definition of response to the environment I got it I think um is it the way an organism reacts or responds to the changes in its environment let's find out yay next what is a stimulus like stemming cuz I do that um not quite how about you isn't it like a change in the environment to get an animal's response yay so instead of thinking of it like stemming maybe you could think of it as something that triggers your senses or something that triggers a reaction out of you from the external environment next up what are the five groups of vertebrates anyone anyone buer all right well they're fish amphibians reptiles birds and mammals now just to clarify these are reptiles that's an amphibian that's a bird that's a mammal and that's a fish in case you forgot now why is it important for vertebrates to be able to respond to their environment at all because they'll die can you expand on that thought homeostasis now we're getting somewhere responding to changes in the environment allows vertebrates to maintain their homeostasis and it increases their chances of survival in dangerous environments moving on what word is defined as a reaction to stimulus oh I know this I know this I know this go ahead a response look at you go next up how is a behavioral response different from a physical response you in the back one you can choose to do and the other one you can't really control do you know which one is which behavioral you choose physical you can't control absolutely awesome definition a behavioral response is a little more complicated than a physical response it's something that an organism chooses to do and a physical response isn't really a deliberate decision wait can you like give examples cuz I'm very lost funny you ask I was prepared for this a physical response can be something like your body producing sweat when hot or maybe your heart rate picking up when you're scared or anxious or when you're doing physical activity or like we saw earlier your pupils dilating or Contracting in response to the light surrounding you but a behavioral response is something more like a penguin's huddling together for warmth dogs learning and Performing tricks on command in exchange for something that they want and desert animals burrowing underneath the sand to try to escape the heat now that we've cleared that up what is acclamation I think I know isn't it like an individual's change like for the response in an environment pretty good it changes on an individual level to the environment around you not on the population level now on that note what's the difference between adaptation and acclamation I know there's no difference no there is a difference um there's no difference there is a difference there's no difference no there's no difference let's just talk about this well I'm glad we got that sorted out now we can talk about it adaptation is the response to the environment on the population level it happens over time and on a very large scale however acclamation is a response an individual has to the environment so I was right but I do have a question like why is this difference like important well if you look to the example viruses can adapt or make changes at the population level but they cannot acclimate or make changes to themselves individually in response to the environment however vertebrates can acclimate now let's keep keep in mind a virus is something that cannot acclimate but vertebrates can thus supporting the fact vertebrates are alive and that's our project some MBL Mig to regular she doesn't [Music] tell me one