Well for one the impact of age of course, is not limited to organisms. overtime your DNA accumulates damage.
b. Cerebrum
and is responsible for the integration of sensory and neural functions.
Answer:
More frequent and severe weather
Higher temperatures are worsening many types of disasters, including storms, heat waves, floods, and droughts. A warmer climate creates an atmosphere that can collect, retain, and drop more water, changing weather patterns in such a way that wet areas become wetter and dry areas drier.
In this question, there are no options given to choose from. So i would answer this question based on my knowledge. The most likely cause of the observed variation is adaptation and evolution. The birds of that island adapted to the food source and then they evolved as per the requirement of the place and food source.
Oatmeal and yams for carbohydrate. Two in high fat whole eggs and avocados. High in protein is seafood and beans.