The finches adapted over time to better suit their environment that they were in -- the size and shape of their beaks changed as a result of natural selection.
Answer:
Like DNA, RNA is made up of nucleotides. ... There are two differences that distinguish DNA from RNA: (a) RNA contains the sugar ribose, while DNA contains the slightly different sugar deoxyribose (a type of ribose that lacks one oxygen atom), and (b) RNA has the nucleobase uracil while DNA contains thymine.
Explanation: For only 7 points no one is going to do that. Make at 50 and I will do it.
Answer: Comparing the DNA sequence of the organisms can also tell you how closely related species they are. It can give you even more information since the original DNA is how the amino acid sequence of cytochromes is coded for.
Looking at embryonic development also helps you determine the phylogeny of organisms because a way an embryo develops can be very similar to the way another species develops but then both are full-grown they look very different and its tuff to explain how close they might be related
In order to create energy from oxygen, the cells must undergo a process called cellular respiration which occurs in the mitochondria. The mitochondrion will use the oxygen, along with glucose, to create carbon dioxide, water, and energy.