3. An element has two isotopic forms. One has a mass of 37 amu and one has a mass of 40 amu. If the average atomic mass of the element is 39 amu, what can be stated about the relative abundance of each isotope?

When you look at different bird beaks, you’re seeing a great example of something called adaptation. Adaptations are traits that developed to perform a certain function and allow organisms to thrive in their environment. Although one adaptation might be very useful for a certain species in a specific environment, that same trait might not be useful for another species in a different environment.

To understand how adaptations arise, it helps to understand the process of evolution. Populations of plants, animals and other living organisms change over many, many generations. Scientists call this process natural selection

Explanation: