Which of the following best describes the highlighted layer on your screen

Option (A)

Explanation:

The image shows the interior of the earth, where the arrow points the core of the earth.

The core is the innermost region of the earth. It is comprised of extremely hot elements such as iron (Fe) and nickel (Ni) whose densities are very high in comparison to the other elements forming the crust and mantle. The density of the earth's core is approximately 13 g/cm³. The temperature and the pressure condition in this region are extremely very high that it is not possible for life to exist.

Thus, the correct answer is option (A).

if the type of the food available changes, then the frequency of beak types will change, because birds with beaks more suited to the available food will be more successful over time.