OCR 21st Century Biology B7 3.5 / 5 based on 3 ratings ? BiologyGCSEOCR Created by: Christabel AcquahCreated on: 16-06-13 20:30 animals with an internal skeleton vertebrates 1 of 10 rigid tissues that make up the skeleton bones 2 of 10 tissue that contracts and relaxes muscle 3 of 10 tough, fibrous, elastic connective tissues that connect muscle to bone or bone to muscle tendons 4 of 10 the smaller, less muscular upper chambers that receive blood coming back to the heart from the veins atrium 5 of 10 blood temperature is monitored by a centre in your brain called the.. hypothalumus 6 of 10 when blood vessels in the skin dilate vasodilation 7 of 10 when blood vessels in the skin constrict vasconstriction 8 of 10 the science of working with extremely small structures nanotechnology 9 of 10 cells that are completely unspecialised stem cells 10 of 10
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