What effects do coal mining, oil production, wind farms, and hydroelectric dams have on surrounding ecosystems?

Legumes, a type of plant, require rhizobia, a type of soil bacteria, to survive since these organisms fix nitrogen during photosynthesis. rhizobia use the legumes for food. what would most likely happen to the legume population if rhizobia suddenly became extinct?

Which component in a graph indicates an independent factor? a. y-axis b. x-axis c. scale

What type of appendages do sponges cnidarians roundworms annelids mollusks arthropods echinoderms and vertebrate have? jointed, not jointed, absent