Early hominid fossils were examined and scientist concluded these hominids exhibited bipedalism. How could they tell that by looking at their skeletal remains?

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?

If a strand of dna has 35% thymine. what is the percentage of cytosine, adenine, guanine?

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