Question

what essential ecosystem service is provided by biodiversity that directly supports human survival?
a. urban development
b. soil erosion
c. clean water and pollination
d. air pollution control
what primarily contributes to an ecosystems ability to recover from disturbances, like extreme weather events?
a. species extinction
b. high biodiversity
c. genetic uniformity
d. habitat destruction
what does resilience in an ecosystem refer to?
a. the stability of human populations in the area
b. the genetic uniformity of a species
c. the number of species present in an ecosystem
d. the ability to recover from disturbances

Explanation:

1. Biodiversity provides clean water through natural filtration and pollination which is crucial for food - crop production, both essential for human survival. Urban development is a human - made activity, soil erosion is a negative process, and air pollution control is not as directly essential as clean water and pollination.
2. High biodiversity allows an ecosystem to have more species that can play different roles in recovery after disturbances. Species extinction and habitat destruction reduce an ecosystem's ability to recover, and genetic uniformity can make a species more vulnerable.
3. Ecosystem resilience is defined as the ability of an ecosystem to recover from disturbances. It is not related to human population stability, genetic uniformity of a species, or just the number of species but rather the capacity to bounce back from disruptions.

Answer:

1. c. Clean water and pollination
2. b. High biodiversity
3. d. The ability to recover from disturbances