24pereznicholas 24pereznicholas

09-07-2022
Biology

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Which statement best describes the effect of the loss of a keystone species from an ecosystem?
A) A new keystone species would take the place of the old one.
B) The populations of other species in the ecosystem would fluctuate dramatically.
C) Species from nearby ecosystems would invade and overtake the unstable ecosystem.
D) Organisms that depended upon the keystone species would quickly adapt to a different species.

Respuesta :

kamakshiruhela11 kamakshiruhela11

12-07-2022

The populations of other species in the ecosystem would fluctuate dramatically. Thus, option "B" is correct.

What is the role of keystone species?

When an organism exists in an ecosystem in such a way that it impacts and influences in the ecosystem and has a significant effect incomparable to its number in the population,such organism is said to be a Keystone species. They are responsible for the structure and continue existence of the ecosystem. Thus their absence leads to change in the ecosystem structure.

They maintain ecosystem structure for example by suppressing the population of one species of organism. E.g if a keystone species is a predator, its continuous predation on the herbivores which graze over a particular land area maintains balance between the green plant population and nutrient cycles in the ecosystem. If the the Keystone does not exits overgrazing from the increasing population of the grazers will disrupt the energy and nutrient cycles in the ecosystem, with dramatic change in the ecosystem.

Thus, option "B" is correct.

To learn more about the ecosystem click here:

https://brainly.com/question/13979184

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