The answer is D. Phosphorus and nitrogen
The three main elements are C, H and O. These two are elements other macro-molecules may not have
Polysaccharide, which is the polymer of a carbohydrate.
It is a to my knowledge, but I will give an update when i find out
Answer:
Explanation: The reason why these two traits are linked is that the genes responsible for hair and eye color happen to be close together on the same chromosomes. When genes like these are close together, the traits tend to end up coming in pairs (blonde hair/blue eyes, etc.).
1) Scientists believe that the ancient ancestors of all animals were <span>single-celled eukaryotes that sometimes grew in colonies.
</span>Eukaryotic cells have membrane-bound organelles such asmitochondria<span> and the Golgi apparatus.
</span>The best answer is :
<span>B) single-celled eukaryotes that sometimes grew in colonies</span>
