How are fish that live in ponds able to survive winter temperatures below $0^{\circ}\text{C}$?
- AFish body tissues produce an enzyme which prevents blood from freezing.
- BThe ice on the pond surface insulates the water in the pond.
- CThe plants in the pond help to keep the water temperature above $0^{\circ}\text{C}$.
- DThe rocks in the pond warm up during the day and heat the water.