AP BIOLOGY

ECOLOGY

BIOMES

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
How does biodiversity impact ecosystem stability?
A
Variations in the ecosystem provides more habitats, which makes the ecosystem more resilient to change
B
Variations within a species means that certain individuals will have superior genes that allow the species to survive
C
Variations of species in an ecosystem increases chance of survival for all species in the ecosystem
D
All of the above are true
Explanation: 

Detailed explanation-1: -Greater biodiversity in ecosystems, species, and individuals leads to greater stability. For example, species with high genetic diversity and many populations that are adapted to a wide variety of conditions are more likely to be able to weather disturbances, disease, and climate change.

Detailed explanation-2: -Biodiversity maintains the stability of ecosystems by replenishing resources from time to time. So, for example an even number of species spread out throughout the forest ecosystem will help in keeping the growth of the trees stable.

Detailed explanation-3: -Ecosystem stability is the ability of an ecosystem to maintain a steady state, even after a stress or disturbance has occurred.

Detailed explanation-4: -Factors affecting stability: Disturbance frequency and intensity (how often and what kind of tillage) Species diversity (intercropping or rotations), interactions (competition for water and nutrients from weed species), and life history strategies (do the species grow fast and produce many seeds or slow with few seeds)

There is 1 question to complete.