Sonar stands for “sound navigation and ranging.” what assumption was proved wrong after the invention of sonar?

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 assuming tasting ptc as a simple gene trait, what other genotype would you select to put in this missing genotype box that could result in this phenotype

What substance is the most acidic. lemon juice. tomato juice. sodium hydroxide. water