Many people who own pet fish put a pondweed called Elodea canadensis in their fish tanks. This species of pondweed produces an extremely high amount of oxygen.

If many fish were placed in a tank without this species of pondweed or a filter, what

would likely happen?

In the scenario given above, Elodea Canadensis which produces extremely high amount of oxygen is used in raising fishes placed in a tank. This oxygen is needed for easier living in the tank. In a situation whereby the Elondea Canadensis is not present in the tank, the fish would struggle to leave comfortably in the tank. with time, the water will become clouded with carbon-dioxide. This would lead to the fish dying due to lack of oxygen.

Explanation:

answer; (phospholipid);

1. dermis

2. chemical

3. urine

4. viruses

5. antibodies