Is the human species a keystone species? explain. if human became extinct, what are three species that might also become extinct, and what are three species whose populations would probably grow?

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.

Fungi contain many different microscopic organisms compared to regular plants, Fungi can be very poisonous compared to plant too and also a regular plant contains a cell wall where as Fungi don't. Most importantly plants use the process photosynthesis to make their own food, Fungi don't.