B2 T3 organ systems pt 1 0.0 / 5 ? BiologyEvolution, extinction and natural selectionGCSEEdexcel Created by: John@11gCreated on: 01-04-15 16:21 provide evidence for evolution and found in rocks fossils 1 of 20 a limb with 5 digits pentadactyl 2 of 20 an increase in size or mass growth 3 of 20 mass of organisms including water wet mass 4 of 20 mass of organisms without water dry mass 5 of 20 e.g. mitosis cell division 6 of 20 a group of similar cells which work together to carry out a function tissues 7 of 20 a group of different tissues that work together to carry out a function organs 8 of 20 a group of organs which work together to carry out a function organ systems 9 of 20 two in every heart, blood goes there first atrium 10 of 20 two in every heart, blood goes there second ventricle 11 of 20 carry oxygen in the blood red blood cells 12 of 20 defend against disease white blood cells 13 of 20 help blood to clot platelets 14 of 20 liquid that carries everything in blood plasma 15 of 20 carry blood under pressure away from the heart. very thick walls arteries 16 of 20 space inside the blood vessel where blood goes lumen 17 of 20 really small, branches of arteries, permeable walls capillaries 18 of 20 take blood back to the heart, blood is under low pressure veins 19 of 20 prevent a back flow of blood valves 20 of 20
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