Hot dogs have 2% Human DNA which is usually from skin cells. Hot Dogs are not living organisms so they don't contain actual hot dogs cells.
Tsunamis leave little water droplets in the air, the biosphere has groundwater, tumbling down, causing the hydrosphere to rise, biosphere be "fertilizing" the groundwater, and atmosphere by gases that help form the tsunami
Decaying tree would be considered a biotic as it is now dead, however it will form an ecosystem of bacteria, fungi and other saprotrophs.
A larger number of plant species means a greater variety of crops. Greater species diversity ensures natural sustainability for all life forms. Healthy ecosystems can better withstand and recover from a variety of disasters.
Answer: B. Mallard ducks have a broad bill and feathers
Explanation: