I think the correct answer among the choices presented is option C. The statement that is true about macromolecules is that "Proteins are made of amino acids". Amino acids are the backbone of proteins. These amino acids are linked by peptide bonds.
The purpose of cutting a frog heart it too relate how the heart structure is. It is just a small scale of the human heart.
Answer:
i think its C sorry if I am wrong
Answer:
B. Black Squirrels have a survival advantage over gray squirrels
Explanation:
Using the information provided, it can be inferred that there is a difference between how many Gray squirrels and how many Black squirrels are being naturally selected.
This means:
Black squirrels have an advantage that reduces the amount of squirrels being selected from their environment.
Hope this helps!