Answer:
The correct answer is- yes human is keystone species.
Explanation:
The keystone species are the species that help so many other species to grow in a evosytem. In other words, a species on which several other species depends on are keystone species
Humans are considered as hyper keystone as they play a major role in any ecosystem from forest to land to ocean in so many different ways. The three species that may decrease are pet animals like cats, dogs, and cows. Species like vulture, tigers, and reptiles might increase in the absence of the humans.