B7.3

OCR 21st Century Science Biology B7.3

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What is a symbiotic relationship?
both organisms benefit
1 of 5
What is commensalism?
one organism benefits but the other isn't affected
2 of 5
What is parasitism
one organism benifits and the other is harmed
3 of 5
How do malaria parasites prevent white blood cells from recognising them
They have surface markers which change at stages of their life cycle
4 of 5
What is sickle-cell anaemia?
a faulty recessive allele that codes for haemoglobin
5 of 5

Other cards in this set

Card 2

Front

What is commensalism?

Back

one organism benefits but the other isn't affected

Card 3

Front

What is parasitism

Back

Preview of the front of card 3

Card 4

Front

How do malaria parasites prevent white blood cells from recognising them

Back

Preview of the front of card 4

Card 5

Front

What is sickle-cell anaemia?

Back

Preview of the front of card 5

Comments

Husna

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they wear a wig-fantastic!

furuba fan

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Really good! Although I think the question for question 1 should've been mutualism as a symbiotic relationship only means different organisms living together in close contact.

Beatrice Benham

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i agree with furuba fan x

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