It is answer A, the hippo is not benefitting from the catfish, therefore it is not mutualism.
Answer:
We don't have anything to read or look at
Explanation:
The answer is producers .
The advantageous proteins that build larger molecules help prolong life life. If there is better survival and reproduction, it is more likely to pass onto the next generation. If it continues to be advantageous, the sequence of them change to support the life of the current species.
