OCR Biology F212 (Molecules, Biodiversity, Food and Health)- 21st May 2012

active immunity is where you are immune to a specific disease such as chicken pox as you are injected and increases concentration of white blood cells.

Apologies meant similarities between collagen and haemoglobin. Differences is far far easier :P

can you ask me more questions
3 roles of CITIES

this is completely random but I just found a question in the textbook which, without the mark scheme I don't know how I would have answered: "Explain why a habitat with more diversity is thought to be more stable." The answer is:
-More diversity = greater species richness
-Each species relies on a number of others, not just one
-If one species is affected by some change, then others may be less effected
-A species that is dependent on the one that has been effected will have others to fall back on

Ok can someone come up with a good set of bullet point notes of advantages and disadvantages of ex situ , in situ and seed banks. Maybe like 4 points for each , so we can always use those points for any related exam question

Sure, just keep doing question for question then.

-Ban international trade on endangered species or products that come from them (e.g. elephant ivory).
-Raise awareness of threats to biodiversity by education.
-Make it illegal to hunt endangered species.

Describe how malaria is transmitted to humans. [4]

this is completely random but I just found a question in the textbook which, without the mark scheme I don't know how I would have answered: "Explain why a habitat with more diversity is thought to be more stable." The answer is:
-More diversity = greater species richness
-Each species relies on a number of others, not just one
-If one species is affected by some change, then others may be less effected
-A species that is dependent on the one that has been effected will have others to fall back on

role of rio convention?

- more representative
-prevents bia
-reduces anomolies

not reduce anomolies because sampling can identify any type of species.. it would be something along the lines that if we dont random sample we can over/under estimate population of a certain species therefore it wont be represenatiable....

your turn

because not closely related have different characterisitcs and differences in DNA and cytochrom c sequencing

To develop international strategies on the conservation of biodiversity.
To provide guidance to governments on conservation of biodiverty.
To make it part of international law that conserving biodiversity is everyones responsibility.

Explain what In Situ and Ex Situ conservation is. [4]

so will i get 2 marks?

Ok Define:hierarchy

Nope, true in any subject. I definitely got a question wrong in January but I got full UMS, for example.

btw do you want to apply for Medicine or something Biological? Cos the amount you know the content is terrifyingly amazing, and I thought I was quite prepared

I mean like how to go from species to genus-family-order-class-phylum-kingdom
why level of relatedness decrease?

so will i get 2 marks?

Ok Define:hierarchy

yeah 2/3
oh gosh.. no idea..

process of sorting organism into different taxonomic group/ taxa

it is a large group which is subdivided into smaller groups of organisms