Answer:
Eukaryotic cells have a membrane-bound nucleus.
Prokaryotic cells do not. The nucleus is where Eukaryotic stores their genetic information.
To us genetic-engineering and produce a genitivally modified species.
It's the procces of humans giving animal the characteristics they want.
Aquatic ecosystems can be classified as freshwater and marine ecosystems.
The correct answer is DNA.
Each chromosome is made up of DNA tightly coiled many times around proteins<span> that support its structure :)</span>