<h2>Answer:</h2>
To differentiate between the structural properties of the chemical molecules.
<h3>Explanation:</h3>
Isomers of a chemical compound are two chemical compounds having the same chemical formula but different structure in three dimension.
Many physical and chemical properties are dependent on the structure of the chemical molecules.
These structural differences leads to many different bonding abilities to other molecules and leads to different properties like melting and boiling points.
The scientists who provided this hypothesis had an idea that the species evolved in order to accommodate their needs on certain islands. For instance, an example is beak size of certain birds which Darwin thought that this was to eat certain foods.
The correct answer is:
A- a policy favoring native-born Americans over immigrants
Explanation:
Nativism is the executive position of processing status for several organized inhabitants of a nation as contrasted to requirements of newcomers or aliens. It is characterized by opposition to immigration based on fears that the emigrants will deteriorate or spoil surviving cultural importance.
