Answer:
It shows that not all symbiotic relationships are equally beneficial to both parties involved.
Step-by-step explanation:
It shows that not all symbiotic relationships are equally beneficial to both parties involved.
Although they do help each other-- the bird's tendency to hurt the zebra in order to help themselves makes the relationship lean to the parasitic side:
"They are sometimes classified as parasites because they open wounds on the animals' backs."
And it is true that not all symbiotic relationships are beneficial for both involved:
Symbiotic relationships are the close associations formed between pairs of species. They come in a variety of forms, such as parasitism (where one species benefits and the other is harmed) and commensalism (where one species benefits and the other is neither harmed nor helped).