OCR A-Level A Biology June 2021 Paper 2 [Walkthrough and Tutorial]

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Questions:
00:00 Multiple-choice questions (1-15)
17:35 Question 16
24:15 Question 17
34:44 Question 18
38:47 Question 19
47:55 Question 20
58:47 Question 21

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Ishraq Choudhury: Video content and narration:

Hannah Conway: Channel logo and branding

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[devrathmedtia]

"I'm not scranable dont eat me" is gonna be the thing u remember in the exam tmr im calling it now

[diddanr]

question 5, states 'during the primary response', but memory cells are not present in the primary response.

[anneonymous]

thank you so much for this thank you 🫶🫶🫶

[laiilaaaaaaa]

why do we not change the -1.8 beak size to +1.8? how can a beak be -1.8?? Q20