Complete the sentence:  if _______ species is removed from an ecosystem, biodiversity can decrease because its presence allows other species to thrive.
Keystone species has a HUGE impact on an ecosystem. An easy way to remember this is to think of a stone arc. If the stone that connects the two sides of the arc is removed the whole arc will collapse. This stone is known as the keystone. This is similar to what will happen in the ecosystem if the keystone species is removed. Hope this helps! Have a great day :)
