Final answer:
Blood generally decays faster than tissue due to its composition. However, both blood and tissue can decay under certain conditions.
Step-by-step explanation:
In terms of decay, blood and tissue can both decay depending on the conditions. However, when it comes to the rate of decay, blood generally decays faster than tissue. This is because blood contains many components, such as red blood cells and plasma, that can break down relatively quickly. On the other hand, tissue tends to have a higher density of cells and is more resilient, so it may decay at a slower rate compared to blood.