They are composed of many different things. Structurally, they are each made up of two chromatids connected by a centromere. It is also made up of DNA(deoxyribonucleic acid), which is our genetic material.
Polychaeta generally refers to a class of annelid worms with segmented body parts.
Even though all of the answers are annelid worms, polychaetes are generally marine animals, so I would say that the answer is most likely Clam Worms.
Siamese cats most of the time mate with Aegean cats, and the reason why is because Aegean cats are also domesticated and most of the times can easily be found.
If I'm right I'd say They control and direct the quantity of food passing through the digestive organs and prevent backward movement of partially digested food. Hope it's helpful.
Answer:
D
Explanation:
The organelle that modifies proteins is the golgi body.