All of these prevent the spontaneous formation of a clot except multiple choice

1. the presence of tissue thromboplastin.
2. the smooth prostacyclin-coated endothelium of blood vessels.
3. the dilution of thrombin when blood flows at a normal rate.
4. the presence of antithrombin in plasma.

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the overall balanced equation

6co2 + 6h2o > c6h12o6 + 6o2

sunlight energy

where: co2 = carbon dioxide

h2o = water

light energy is required

c6h12o6 = glucose

o2 = oxygen

the answer is b)3/8x+1