Most finches' beaks are way too broad or short to collect flower nectar, 'cause on the other hand, hummingbirds' beaks are long and narrow.
The answers is Organisms better adapted to their environment tend to survive.
Coronary artery.....are the arteries that provide blood to the wall of heart !
The existence of being able to process photosynthesis.
Photosynthesis is a functional and adaptive mechanism which enables plants to make and create their own food with the use of sunlight. Also, water and carbon dioxide, oxygen is then the by product of this process which is beneficial to other organisms especially heterotrophs.
