Give an example of a model used in Earth science. Explain why models are particularly important to this field.

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 mechanism of transport takes place when solute particles move from a region of high concentration to a region of low concentration? active diffusion isotonic osmosis

1. describe the structure and function of the specialized cells you observed in the video. 2. research the types of cells present in the kidney.