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domingo, 13 de noviembre de 2022

NUTRITION 2

 CIRCULATORY SYSTEM



The circulatory system is made up of blood vessels that carry blood away from and towards the heart. Arteries carry blood away from the heart and veins carry blood back to the heart. The circulatory system carries oxygen, nutrients, and hormones to cells, and removes waste products, like carbon dioxide









CAMBRIDGE EXAMS ACTIVITIES

KETS PRACTICE TESTS EXAMS ONLINE  -KET PET PRACTICE TESTS Other links:  (KET) Cambridge A2: Key (PET) Cambridge B1: Preliminary PRÁCTICA TOD...