Answer is - C. Capability to consume prey of variable size !! - hope that helps
The answer is option C "Warm air rises as cooler, denser air falls." Convection is heat transfer between two objects for example a hot metal pot to a spoon. During convection hot air rises and cold air (or denser air) sinks.
Hope this helps.
Transcription factor binding
I think its the Diurnal Cycle.