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Biology HL Paper 1/2 (no p/3 discussion!)


Isobellee

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Hey, so I thought the data analysis question on P2 was also difficult, however the rest was relative to other years.

 

Yeah I believe the emergent properties one was "amino acids" since they can form polypeptides, and then proteins etc...

For the Growth Curve there was only 1 that would reduce the population, from memory it was natality rate decreasing... however, I'm confused about how immigration would affect the population curve, where are humans immigrating too? the moon? Lol.

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I thought they were pretty good, not many surprises.

 

I thought they were okay, I struggled most with the data analysis question for Paper 2.

 

Did anyone get the question on paper 1 about emergent properties and the one about the world population growth curve?

 

Hey, so I thought the data analysis question on P2 was also difficult, however the rest was relative to other years.

 

Yeah I believe the emergent properties one was "amino acids" since they can form polypeptides, and then proteins etc...

For the Growth Curve there was only 1 that would reduce the population, from memory it was natality rate decreasing... however, I'm confused about how immigration would affect the population curve, where are humans immigrating too? the moon? Lol.

 

I thought 'emergent properties' was ant because it can only occur with multicellular organisms. And the population curve, natality rate decreasing?, it was the only one who reduced population growth and made the curve plateau. 

 

Although I was confused with the immigration option too haha, I thought maybe they meant that when people immigrate (esp. illegally) it is dangerous, people can die and so the population can decrease :/ but that's way too complicated for an IB bio question right? and it wouldn't reduce the population that drastically (hopefully :( ) Or maybe the people are immigrating to Earth from another planet, and so the population increases? Yeah those were the only ways I could think of the immigration rates affecting world population. I decided to go for the automatic procedure of immigration = increase of population, & don't think how. But I'm not too sure haha

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I thought they were pretty good, not many surprises.

 

I thought they were okay, I struggled most with the data analysis question for Paper 2.

 

Did anyone get the question on paper 1 about emergent properties and the one about the world population growth curve?

 

Hey, so I thought the data analysis question on P2 was also difficult, however the rest was relative to other years.

 

Yeah I believe the emergent properties one was "amino acids" since they can form polypeptides, and then proteins etc...

For the Growth Curve there was only 1 that would reduce the population, from memory it was natality rate decreasing... however, I'm confused about how immigration would affect the population curve, where are humans immigrating too? the moon? Lol.

 

I thought 'emergent properties' was ant because it can only occur with multicellular organisms. And the population curve, natality rate decreasing?, it was the only one who reduced population growth and made the curve plateau. 

 

Although I was confused with the immigration option too haha, I thought maybe they meant that when people immigrate (esp. illegally) it is dangerous, people can die and so the population can decrease :/ but that's way too complicated for an IB bio question right? and it wouldn't reduce the population that drastically (hopefully :( ) Or maybe the people are immigrating to Earth from another planet, and so the population increases? Yeah those were the only ways I could think of the immigration rates affecting world population. I decided to go for the automatic procedure of immigration = increase of population, & don't think how. But I'm not too sure haha

For the exponential population curve one I answered A. Enhanced food production because that's what BioNinja said!

 "Exponential Growth Phase

  • There is a rapid increase in population size / growth as the natality rate exceeds the mortality rate
  • This is because there is abundant resources (e.g. food, shelter and water) and limited environmental resistance (disease and predation uncommon)"

I did Question 5 and 8 for Section B and literally wrote everything I had memorised from BioNinja down.

How do you get the extra two points? 

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I thought they were pretty good, not many surprises.

 

I thought they were okay, I struggled most with the data analysis question for Paper 2.

 

Did anyone get the question on paper 1 about emergent properties and the one about the world population growth curve?

 

Hey, so I thought the data analysis question on P2 was also difficult, however the rest was relative to other years.

 

Yeah I believe the emergent properties one was "amino acids" since they can form polypeptides, and then proteins etc...

For the Growth Curve there was only 1 that would reduce the population, from memory it was natality rate decreasing... however, I'm confused about how immigration would affect the population curve, where are humans immigrating too? the moon? Lol.

 

I thought 'emergent properties' was ant because it can only occur with multicellular organisms. And the population curve, natality rate decreasing?, it was the only one who reduced population growth and made the curve plateau. 

 

Although I was confused with the immigration option too haha, I thought maybe they meant that when people immigrate (esp. illegally) it is dangerous, people can die and so the population can decrease :/ but that's way too complicated for an IB bio question right? and it wouldn't reduce the population that drastically (hopefully :( ) Or maybe the people are immigrating to Earth from another planet, and so the population increases? Yeah those were the only ways I could think of the immigration rates affecting world population. I decided to go for the automatic procedure of immigration = increase of population, & don't think how. But I'm not too sure haha

For the exponential population curve one I answered A. Enhanced food production because that's what BioNinja said!

 "Exponential Growth Phase

  • There is a rapid increase in population size / growth as the natality rate exceeds the mortality rate
  • This is because there is abundant resources (e.g. food, shelter and water) and limited environmental resistance (disease and predation uncommon)"

I did Question 5 and 8 for Section B and literally wrote everything I had memorised from BioNinja down.

How do you get the extra two points? 

 

 

I think you mis-read the question, it was asking about the transitional - plateau phase not the exponential growth.

 

I did 7 and 8, and i hope they don't take down marks for my heart drawing lol :P

 

The extra 2 are for your coherency and structure.

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Hey, so I thought the data analysis question on P2 was also difficult, however the rest was relative to other years.

 

Yeah I believe the emergent properties one was "amino acids" since they can form polypeptides, and then proteins etc...

For the Growth Curve there was only 1 that would reduce the population, from memory it was natality rate decreasing... however, I'm confused about how immigration would affect the population curve, where are humans immigrating too? the moon? Lol.

 

I fairly sure for the emergent properties one was ants. There's a syllabus statement in Topic 2 Cells that refers to it. 

 

2.1.7 State that multicellular organisms show emergent properties.

 

Ants was the only option that was multi cellular. 

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