A removal of a dam in a river has restored river flow and improved the water quality of the river. Which of these would most directly increase due to the enhanced water quality in the
river ecosystem?
pollution
biodiversity
death rates
global climate change

Chinese privet is a plant that is native to china. over 150 years ago, chinese privet was introduced to the united states as a fast-growing shrub that serves as an excellent privacy hedge. with no natural herbivore, chinese privet quickly established itself and spread in natural areas throughout the southeast and eastern seaboard of the united states. its dominance in these areas has jeopardized the survival of native plant species. chinese privet provides evidence that introducing non-native organisms can cause environmental damage integrated pest management strategies will not decrease chinese privet populations american gardeners can easily control the spread of chinese privet non-native plant species have type i survivorship curves

How does science influence the decisions made about social, economic, and political issues?

Natural selection changes allele frequencies because some survive and reproduce more successfully than others.