| Front | Describe veins |
| Back | Thin walled elastic vessels that transport deoxygenated blood to the heart; the vessels have less recoil and can stretch to accommodate large volumes of bloodVeins have valves because they must act against gravity to push the blood from the lower parts of the body to the upper part of the body to the heartVaricose veins form because the valves failing to shut and blood tries to move backwards |
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| Front | What are the different ways in which determination can occur? |
| Back | During cleavage, when mRNA and protein can be unevenly distributed, or due to morphogens that are secreted and cause nearby cells to follow a particular developmental path |
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| Front | Is bone dynamic or static? How does this happen? |
| Back | Bone is dynamic and contains undergoes remodelling; two cells are responsibleOsteoblasts (build bone): Ca+ and P are taken from blood to build boneOsteoclasts (chew/resorb bone): Ca+ and P are released back into bloodBone remodels in response to stress and accommodate the repetitive stresses of the body |
| Tags | Ch11.2** |