Complete the sentences about heme. Some terms will not be used. The prosthetic group of hemoglobin and myoglobin is . The organic ring component of heme is ___. Under normal conditions, the central atom of heme is ___. In , the central iron atom is displaced 0.4 Å out of the plane of the porphyrin ring system. The central atom has bonds: to nitrogen atoms in the porphyrin, one to a residue, and one to oxygen.

Heme is the prosthetic group of myoglobin and hemoglobin.  

Porphyrin is the organic ring constituent of heme.  

Fe2+ is the central atom of heme under usual circumstances.  

The central iron atom gets displaced by 0.4 Angstrom out of the plane of the porphyrin ring system in deoxyhemoglobin.  

The central atom comprises of six bonds, that is, four to nitrogen atoms, one to oxygen, and one to a histidine residue in the porphyrin ring.  

the two answers are a, the population of birds with large beaks will increase on the island, and c, the trait for large beaks will be passed on to future generations through natural selection. the reason for that is because if the birds that have beaks developed for eating small seeds lose all of their food, they will go hungry and eventually starve because they physically cannot eat the large seeds, therefore making the population of large beaked birds higher. also, if the trait of large beaks are dominant on the island over small beaks, then over time the large beaked birds will reproduce more and more, while the smaller beaked birds will reproduce less and less because they can't survive with the food provided. that leads to the trait of small beaks disappearing and the trait of large beaks taking over the island.