Biology and ESS
For Biology and Environmental Systems and Societies Discussions
1,489 topics in this forum
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Hey I just wonder how much paper 3 counts when getting a final grade in Biology HL. Sorry if the information is around but I could not find it. Say I get 4 on paper 1, 4 on paper 2 and 6 on paper 3, will my final grade be 5 if my IA-grade is 4 as well? I know the grades vary and one cannot say with 100% confidence that yes the grade will be 5, but approximately. Best wishes, kentpop
Last reply by IBKID4lyf, -
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Im starting school on the 31st with the 1st year of the IBDP programme and I was wondering is Bio HL difficult? I love biology but i hate plant biology and I have mixed emotions for DNA will it be enjoyable, is it interesting and most importantly is it difficult? thanks in advance
Last reply by Sarah1, -
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Hello all! I just had my first biology class and the teacher said that we are starting the year with a lab report. She gave us the general title which is: "Factors that affect pond water" and we are starting the design part in a week or so. Could someone mention some broad ideas about a factor I could use? Regards, Flomer
Last reply by by.andrew, -
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BIOLOGY EE HELP Question-- The effect of sound(sonotrophism) on the phytogeography of Algae --Phytogeography --- The geography of flora or plant life; where botany and physical geography overlap. So with this I want to investigate if sounds have an effect of how dispersed algae is an environment (am looking more into water based environments but algae can grow in any environment) . There's been a lot of research on noise pollution, and how it would affect animals in wildlife. However, no so much on actual plant life. Algae itself is known to be autotrophs(primary producers) . Which means they are fundamental to all the food chains in the world. One…
Last reply by Sandwich, -
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I am now vacillating between Biology SL and Environmental Systems & Societies SL! I don't think if I'll be doing anything medical related like becoming a doctor or a pharmacist, so I don't know if I should take Biology. I just find it interesting and I'd feel weird not learning it in highschool. What exactly do you learn in ESS?
Last reply by IBKID4lyf, -
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I've completed my group 4 project but now I'm wondering if all there's left to do is complete my final exams. Is it necessary to submit a certain number of IA's or can I get away without submitting any?? Thanks
Last reply by IBKID4lyf, -
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Freaking out about bio hl exams any study tips ? I cant seem to keep anything in my head and am slowly losing motivation.Help !
Last reply by Hayden66, -
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so when a question asks you to deduce something, do you have to show the working out in order to get the full points?
Last reply by MainRostand, -
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I am takin hl : english b , economics n business Sl: math n german I need one more subject from group 4. Ess or biology I am not really intrested in writing
Last reply by MainRostand, -
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Hi I need help for IB design biology lab i know that i shouldn´t be asking is just that all the methods i have think off i can't use it because on my school they don't count with the equipments i need for the idea i had. The topic is factors that affect the color of the leaves. Thanks in advance if you want to help.
Last reply by MainRostand, -
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Should i compare data with a friend to show accuracy? Im using standard deviation and other legitamite statistical tests but do u think it would be helpful to include a comparison maybe in my conclusion or is that unneccesary and not advised?
Last reply by IBwanting2survive, -
Hi guys, Is a 20ml measuring cylinder has an uncertainty of 0.5 mL? Is a pipette has an uncertainty of 0.1cm3? Is the mercury thermometer has an uncertainty of 0.5°C? Thank You in advance!
Last reply by Emmi, -
Hi guys, This question is pretty silly but my teacher ask us to measure the egg's "length" using thin string, we wrap it around and then use a ruler to measure the string to decide the egg's "length". BUT, do we call it as "length"? I mean, if we are going to name it as length, it will change the real meaning because, we basically wrap the string around the egg. So, do we call it as vertical circumference? Any ideas??? Help ASAP PLEASE :'(
Last reply by Sandwich, -
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hey guys!! I m having serious troubles writing my lab report : we made two groups and each group used adifferent concentration of potassium hydrogen carbonate solution. Ihave a table of results but dont really know what to do with it... standard deviation? the goal was to compare both groupsand see the effect of the concentration on the rate of photosynthessis. I d be veryyyyyy thankful for any help
Last reply by Infested, -
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Hey, IBS, Here's the Skydrive link to all the study material I used for my ES&S exams in November. Hopefully they will be of use to those doing the exam in May. http://sdrv.ms/QmqhqJ I think the most useful folder is the Syllabus page; it has the course outline, glossaries, assessment statements, etc. It also has revision summaries for the entire course, which was compiled from the PearsonBacc, Oxford, and OSC Revision Guide books for ES&S. There's also PowerPoints, word documents, etc on certain topics. Enjoy studying
Last reply by onur basman, -
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Hi guys, Please help me answer: 1. Is a ruler with measurement (eg. 15.1 cm) has a 0.1cm or 0.05cm uncertainty? I'm confused of which one is true. 2. Is an electronic balance with measurement (eg. 70.52 g) has a 0.01g or 0.005g uncertainty? HELP ME PLEASE! Thank you!
Last reply by cricketcrazynerd, -
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Hi guys, Can you guys share ideas of how you remember your Biology notes or what books or websites you recommend to revise Biology, it such a good lesson! But there's things within the Chemistry of Life section or another topic where it talks about pentose sugars,hyrdolysis, amino acids and R-groups and drawing monomers and just generals along those lines and I'm curious as to how you remember it and what books/websites do you recommend? Thank you
Last reply by gulinl, -
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Starting an Internal Assessment for IB Biology soon. I need to find a topic regarding enzymes. Haven't been having any luck finding any websites with good ideas. Any sites that you guys use to find topics that you can recommend would be highly appreciated. Or if you have any ideas yourself or past labs regarding enzymes I can conduct I would be most grateful.
Last reply by Sandwich, -
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Hi My class just completed the entire SL/HL syllabus part of human physiology, and now we have to complete a lab report on a factor that affects total lung capacity (which averages at about 6 decimeters cubed per person, but obviously can be significantly lower) - and I dont exactly know what single factor I think would be really appropriate to 'change' (independent variable). Could someone give some ideas (looking at height, weight, standing/sitting, smokers vs non smokers etc) and could you possible give a reason as to how these/this particular factor(s) affect lung capacity? Anybody's assistance will be greatly appreciated, and I would really like to get replies ASAP,…
Last reply by RandomPeersoon, -
Hey guys, So this is my very first IA within IB Biology I HL and I'm confused. Obviously, our teacher can't help at all and I've tried coming up with ideas and I'm just honestly not sure what he's looking for. And we're also not allowed to talk to each other, so I can't ask other students what they are doing. Here's the general topic given to us by our teacher: "Design an experiment where you are measuring differences between two populations (two groups: male vs. female, senior vs. freshman, white vs. black, etc.) YOU CANNOT TEST HEIGHT. BE CREATIVE AND REALISTIC, YOU MUST PERFORM THIS EXPERIMENT NEXT WEEK." Originally I was thinking about doing something with colorblind…
Last reply by RandomPeersoon, -
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Yo dudes Anyone have a memrise account and want to try my topic 2 biology course? http://www.memrise.com/course/103453/unit-2-cells-ib-biology/ You can help me by telling me if I've missed out anything or made a mistake, while learning biology AT THE SAME TIME. Everrrybody wins. (Also if you don't have a memrise account, I highly reccomend getting one especially for foreign language learning.)
Last reply by thirdculturekid, -
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hi, Do you guys know any website where I can get IB past papers. Because usually when I open a website, it is either on error or the past papers are incomplete. Thank you for your help
Last reply by Sandwich, -
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Does anyone have access to the November 2012 IB Biology SL Paper 1 or/and 2? If so can you please post a link/send to me via email [e-mail removed] Thanks!!
Last reply by SurajM, -
I got a really bad mark for my labs, and I was hoping that for these exams I would get at least a low 5 to compensate for that grade. I tried finding ways to calculate the total percentage (based on what I got for my mocks) but it was hopeless!
Last reply by TykeDragon, -
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Is it appropriate to place definitions in background information of a bio IA?
Last reply by Da Wong, -
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Hey Guys As some of you may know Biology is tomorrow! Eeek I dont know about you guys but im super nervous about this exam in general. Im in HL Biology and i was wondering if any of you may have some clue to what questions could appear on the exam tomorrow. Obviously these are estimate and may not come true. I really hope a good diagram question will show up on Paper 2 essay part. Good luck
Last reply by alefal, -
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Hi guys, I am currently planning my next Biology IA. I am planning to do the effects of temperature on osmosis in potato, could everyone please give me some tips or ideas please? Thanks in advance, Brian
Last reply by alefal, -
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How do you read them? There's a lot of questions in past papers that ask for you to identify whether these two kids are related to man I or woman II or whatever, but I never know how... can anyone explain it in Layman's terms!? (By DNA profiles I mean the horizontal lines of DNA separated via gel electrophoresis by the way)
Last reply by Absolutely Positively, -
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Last reply by susanne, -
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I am having a difficult time to remember the animal and plant phyla at the moment, I just want to gather any cool techniques to remember them!
Last reply by Egos, -
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Does random orientation occur in both metaphase 1 and metaphase 2?
Last reply by Hens48, -
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I've always wondered this especially for ESS & Bio. If we have the same meaning but maybe not exactly the same wording, do we get the answer correct or are they really picky on those? Or a right idea that doesn't appear on the markscheme? My ESS teacher said its up to their discretion, but my biology teachers mark sooo tightly.
Last reply by Claudiosee, -
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I've always wondered this especially for ESS & Bio. If we have the same meaning but maybe not exactly the same wording, do we get the answer correct or are they really picky on those? Or a right idea that doesn't appear on the markscheme? My ESS teacher said its up to their discretion, but my biology teachers mark sooo tightly.
Last reply by Claudiosee, -
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Please and thank you. 1. Explain how the collecting ducts can alter the volume of urine produced by the kidney. [5] 2. Blood plasma, glomerular filtrate, and urine have different concentrations of solutes, such as glucose, protein and urea. Explain the processes occurring in the kidney that cause the differences in the concentrations of these solutes between blood plasma, glomerular filtrate and urine. [8]
Last reply by Sandwich, -
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Whats up??!1 So yah...for ess paper 1 and 2. Are there any specific topics that are in paper 1 and some other specific topics that are in paper 2.?? Cuz right now im studying the whole book for paper 1. which is tommorow. Help me out, Ill appreciate it . thank you.
Last reply by alefal, -
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Okay, this probably makes me sound fairly stupid, as most people find these questions super easy, but I never seem to answer them correctly! Is there some kind of technique I'm missing out on or something? For example, if we are given questions with graphs on, I can read from the graph but when it comes to stating suggestions or reasons why the data is what it is, I'm lost... If anyone can help me out here, I'd appreciate it a lot as I really want to do well in Biology Thanks in advance! NB: I do Higher, if that helps with any advice Edit: Sorry if there are existing threads/ this is in the wrong place, didn't see anything!
Last reply by Sandwich, -
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Who's taking their exam tomorrow? If so, how are you studying/preparing for it? Personally, I'll just go by the syllabus and learn off each assessment statement
Last reply by Ibomorelikeibno, -
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What are the different topics that are going to be on paper 1 and 2???? do you guys know??
Last reply by ninakeiko, -
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I made a 87 freshman year in bio not trying at all.Next year I'm taking IB eng SL IB USH HL AP Human Geo honors french 2 ap stat honors precal honors physics and I can't decide whether or not to take bio or ess. Will bio take more time/ effort? Is ess significantly easier? I will be a junior next year and how many hours of work a day am i looking at?
Last reply by Ibomorelikeibno, -
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Just wondering, for the homeostasis internal, what the uncertainty for a digital thermometer would be? thanks!
Last reply by theboro76, -
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Hey guys I am in a huge dilemma! As our options we have Option B: Physiology of Exercise and Option G: Ecology However I read Option A:Nutrition and health which I really love. Is it against the rules that I choose to write another option instead of G? It isn't in the rules. On the paper it says that I do 2 options not the ones we've done. Please answer!!! thank you.
Last reply by Sandwich, -
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Hey guys, So far in Biology SL we have done 2 Lab reports (internals). Our teacher says that we might do 1 or 2 more during the year. I was just wondering, how many of the internals are actually going to go towards the actual mark in Biology ? and how many of them are sent to the IB ? Thanks in advance
Last reply by Tina St, -
Hello! So my ESS teacher went on a pregnancy leave last month and we have no clue what to do for the exam. (my IB DP buddies and I are wiggin' out!) Can someone tell me how the exam is set up? The only thing I know is that part of it is a case-study, but even so I don't know what that entails. Thank you so much! And if any of you have any good links to good reviews that would be EXTREMELY helpful! Thank you!!
Last reply by lharley, -
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I'm sorry if this is in the wrong place because I've only been here a handful of times. (What is a handful anyway? lol) I have to have IA Topics by Monday for my class. I'm willing to do anything that isn't expensive to do because my family is struggling financially so I don't have money to do a project that requires 20 plants or whatever. I'm in Biology SL and will take it again next year because I'm not testing out this year. I don't mind because Science is really difficult for me and I tend to stumble a lot and have to study harder with that subject to get anything in unlike Math or Economics. I have a few topics but I don't know if they are good enough? One is using …
Last reply by Shalaleh, -
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I am writing a photosynthesis design - light intensity affects rate of photosynthesis, and I have no idea how to control the level of CO2 at exactly 0.5% (I figure that the experiment will take a short while so I'm not taking the 0.1% value). Thank you for your help, Matt
Last reply by Rocket-Singh, -
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Hey Guys, i have a Bio IA on Wednesday and it's about Transpiration in Plants. we're required to use a data logger during the experiment and i have no idea what i could do.. do you guys have any ideas??
Last reply by Sandwich, -
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Hey all, I have a lab coming up, and the planning portion is due Tuesday. The lab is 2.1.7, the question being "describe and explain population interactions using examples of a named species". My teacher recommended having our "question" start with, What is the effect of inter/intracompetetion of ____ on _____... Besides being confused by the question, I'm finding it hard to find a topic to discuss. She limited it to vegetation, since we're actually doing this in class afterwards. Any ideas?
Last reply by TykeDragon, -
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Hello all! So we all just got the official dates for exams and if I'm correct, the bio HL paper 1&2 are may 13th? And then the day after paper 3 Honestly, like many people were probably forced to do, I've only taken biology because I did not want to take chemistry or physics. In my 11th grade I did SL (that's how we did it at our school) and then I was forced to take HL this year because my new school doesn't offer SL. I got 5's and 6's in the SL exams but all I've gotten this year is 4's I guess part of my problem is that I tend to study like a day or two before the exams and it really doesn't work for me..I know I know, don't nag me hehe. I really really want to g…
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Hi all of you fellow biologists (and others of course) i found this channel on youtube and it has a lot of useful videos for revision, so i thought i'd share! http://www.youtube.com/user/SCScienceVid/featured
Last reply by Bee H, -
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We used distilled water, 5%, 10%, 15% corn syrup solutions to test movement of water in and out of cell by observing the mass of taros in these solutions but the mass decreased more for the 10% corn syrup solution rather than the 15% solution which should have shrunk the most since it has the most solute outside the cells so water shoulda moved out the most to find an equilibrium.... What could have possibly accounted for this? And how should I account/mention this in my conclusion ?
Last reply by Sandwich,
