Based on the nature of species, the species that will most likely suffer a decreases in its population is the altruistic species.
In the case of an invasive species dominating food resources in aquatic ecosystem, the species that will most likely suffer a decreases in its population is the altruistic species.
An altruistic species will aim to benefit other organisms even to their detriment.
Therefore, the species that will most likely suffer a decreases in its population is the altruistic species.
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