Almost the entire system of an embryo is made of cartilage, whereas that of an adult is mostly made of bones.
So 200/25 is equal to 8, and because of that, the plot has 8 weeds per square kilometer.
I believe the answer is it can form polymers like carbs, lipids, proteins, and nucleic acids.
The answer would be 36, you just fill in what you know and solve the problem.