Which series of labels correctly identifies the indicated structures in this sketch of a cell viewed under a microscope?
[question and answers below, you can use 1 2 3 4 for each answer! : )]

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?

The “ecological footprint” left by a citizen of a developed nation is about four times larger than that left by a citizen of a developing nation. why is this the case?

Explain the significance of meiosis in sexual reproduction