1. Make an observation.
2. Ask a question.
3. Form a hypothesis, or testable explanation.
4. Make a prediction based on the hypothesis.
5. Test the prediction.
<span>Electrical signals in the body are often based on ions because ions are charged particles</span>
Answer:
A. Prokaryotes
Explanation:
It's comparing prokaryotes and eukaryotes, a eukaryote cannot be a prokayote.
The answer is Habitat. The brackish water environment is formed due to the mixing of fresh water from the river with the salty waters of the ocean. This habitat is significant for fishes that come to spawn and feed. Crabs, mosquitoes and birds can also be found in this environment.