Answer:
If larger seed became available, directional selection will act in favor of bigger beak finch.
Explanation:
In the case that more large seeds were to become available, then directional selection will start to influence in the beak size, favoring those individuals with bigger beaks. Those individuals with shorter beaks will start to disappear as these animals won't be able to eat the larger seed.
Directional selection <em>increases the proportion of individuals with an extreme phenotypic trait,</em> in this case, large beaks.
This selection presents more frequently in those cases in which <em>interactions between living organisms and the environment</em> modify in the same direction.
If the Midwest experiences a severe drought that damages the corn crops, we should expect the supply of corn to decrease and the price of corn to rise.
Severe drought is a long period of abnormally low rainfall and dry weather, in a specific region, which negatively affects plants and living organisms. Severe droughts can have a considerable effect on the agriculture and ecosystem of the affected region. Severe drought damages crops, thus it influences crop production.
Isotopes are variants of a particular chemical element which differ in neutron number, although all isotopes of a given element have the same number of protons in each atom. The term isotope is formed from the Greek roots isos and topos, meaning "the same place"; thus, the meaning behind the name is that different isotopes of a single element occupy the same position on the periodic table.
D. both plants and animals need freshwater to live
