There are different types of interactions among species, like 1) coevolution and 2) parasitism.
Coevolution → relationship between two species that interact and adapt to each other. Occurs a reciprocal genetic change due to selective pressures that each species imposes on the other.
Parasitism → interaction between species in which one of them is beneficiated, while the other suffers a consequence, reducing its fitness. These interactions are mainly about nutrition.
1) hummingbirds-flowers: Coevolution
2) cuckoos-other birds: Parasitism
You can learn more about coevolution and parasitism at
https://brainly.com/question/1489642
https://brainly.com/question/22589174
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