【多选题】Which of the following statements about biodiversity are correct?
A.
Biodiversity is an important concept in ecology and evolution because genetic & phenotypic diversity are essential conditions for the occurrence of natural selection.
B.
Diversity gives species the ability to change over time in response to environmental conditions.
C.
Species that lack diversity may become extinct when the environment changes.
D.
Lack of diversity between and among species in the ecosystem can also impact the ability of the ecosystem to adapt to changing environmental conditions and stresses, such as changing weather patterns, invasive species, and pollution.