IAL Biology Unit 4

[saifulahmed49]

what did u guys write for the one asking how may antibodies are left? i got 2.45

what did you write for 6 mark decomposition? :S

 

[Agent Z]

The paper was ok-ish apart from the 6mk decomposition.

 

[saifulahmed49]

The paper was ok-ish apart from the 6mk decomposition.

1st 2 mcqs- valid and precise?

 

[Paras]

1st 2 mcqs- valid and precise?

wrote valid and reliable

 

[husain barood]

wrote valid and accurate

 

[husain barood]

the paper was shityy...

 

[Agent Z]

what did u guys write for the one asking how may antibodies are left? i got 2.45

It was either
1/(2^5) or 1/(2^4.9)
OR
100%/(2^5) or 100%/(2^4.9)

 

[aligatorviper]

it was a good ppr the ratio was 3.13
for some questions i felt the marks were more than required
the grade boundary is going to be higher

 

[Agent Z]

1st 2 mcqs- valid and precise?

Wasn't too sure about those 2 MCQ's either

 

[Agent Z]

it was a good ppr the ratio was 3.13
for some questions i felt the marks were more than required
the grade boundary is going to be higher

I think they'll just keep it constant, maybe 63-ish for A*, but hey, who knows?

 

[saifulahmed49]

It was either
1/(2^5) or 1/(2^4.9)
OR
100%/(2^5) or 100%/(2^4.9)

yah!i did that!!!1/32 hope it's correct! :S

 

[Rainbowpeace]

The dedrochronology that question... Why the sample is sealed?

 

[Rainbowpeace]

== I

Prevent decomposition or infection by pathogen.

wrote to prevent the growth of microorganisms...

 

[Paras]

Prevent decomposition or infection by pathogen.

do u work for edexcel? u seem to be so firm with your answers!

 

[aniekan]

do u work for edexcel? u seem to be so firm with your answers!

Hahaah lmao! I'm a student

 

[aniekan]

== I

wrote to prevent the growth of microorganisms...

That's correct

 

[Rainbowpeace]

That's correct

Kitten question.... Why the antibodies from the mother is not long lasting?

 

[Agent Z]

Kitten question.... Why the antibodies from the mother is not long lasting?

Passive natural immunity. Antibodies from mother will eventually die out. There are no memory cells, antibodies not produced quickly etc etc etc

 

[shahlakh]

Passive natural immunity. Antibodies from mother will eventually die out. There are no memory cells, antibodies not produced quickly etc etc etc

yeah i wrote sth like that. I mentioned natural passive immunity. but i wrote that antibodies from mother are usually temporary . i think its the same as saying it will eventually die out.

 

[Agent Z]

yeah i wrote sth like that. I mentioned natural passive immunity. but i wrote that antibodies from mother are usually temporary . i think its the same as saying it will eventually die out.

Yup.