Describe what the completeness or integrity of an ecosystem biodiversity is used to measure

Disruptions to any physical or biological component of an ecosystem can lead to shifts in all its populations. Biodiversity describes the variety of species found in Earth`s terrestrial and oceanic ecosystems. The completeness or integrity of an ecosystem`s biodiversity is often used as a measure of its health.

Explanation: Disruptions can really mess with any physical or biological component of a ecosystem then that ecosystem leads to shifts in all populations. I hope this answer helps you!

The correct answer for the question above is letter c. If you compare the braincase of australopithecus afarensis and homo habilis, homo habilis have greater size than australopithecus afarensis. Therefore, the size of the braincase is the most useful evidence in differentiating between the remains of australopithecus afarensis and homo habilis.