The variation in beak type enables the different individuals in a population to feed on different food sources.
The shape of the beak is key to determining the primary food source of the bird. Certain birds species have specialized beaks, but within populations of those species, there is a variation in beak shape.
This gives the population the ability to respond to changes in the environment and availability of different food sources.
For example, if because of a dry period there is a shortage of fruit, some individuals in the population have the beaks that enable them to feed on other things, survive and leave offspring.
Answer:
A. yes they eat plants and grass
Explanation:
Earth is mysterious. But the Continental Drift did happen.
Proofs: All the continents fit together perfectly like a puzzle.
If you put all the continents together certain mountain ranges match up.
<span> A third idea supporting movement of the
continents was the glacial till deposits in the southern
hemisphere. With the continents in their present positions, the
till deposits indicate erratic glacier motion. When the continents
are fitted together, they show a much more streamlined motion of the
glacier from southern Africa and Northern Australia outward.</span>
Nucleic Acid Genome and Protein Capsid forming Nucleocapsid.
