What is the energy needed to get a reaction started?

Invasive species are one of the major threats to biodiversity. these species multiply quickly and compete with native species for food, sunlight, spac and other resources. on the map, determine the area where native species will have limited resources available to them due to invasion threat from invasive species threat very low low medium high very high

List charasteristics of athenosphere

Blood has traveled from the heart to the toes. which describes the next step of the circulation process?