Porque é importante que os músculos sejam bem irrigados pelo sangue

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?

Explain the source of radioactivity in uranium in earth’s crust by which it produces nuclear radiation

Describe your dna model. which part do the straws represent? the pushpins? the paper clips and the black dots you made with the marker?