OCR A LEVEL BIOLOGY A PAPER 3 2023 (H420/03: Unified biology)

OCR A LEVEL BIOLOGY A PAPER 3 2023 (H420/03: Unified biology). DOWNLOAD OFFICIAL AND VERIFIED OCR A LEVEL BIOLOGY A PAPER 3 2023 on Hackedexams.com INSTANTLY. 1 Cats are mammals. (a) A light micrograph of a section through the trachea of a cat is shown in Fig. 1.1. Fig. 1.1 A B C (i) Name the tissues labelled A and B in Fig. 1.1. A ........................................................................................................................................ B ..................