Multiple ChoiceWhich organisms are primarily responsible for transforming atmospheric nitrogen (\(N_2\)) into a form that is usable by plants?69views
Multiple ChoiceHow do humans primarily obtain the nitrogen necessary for building proteins and nucleic acids?97views
Multiple ChoiceMembers of which phylum establish a successful symbiotic relationship with the roots of trees for nitrogen fixation?351views
Multiple ChoiceWhich of the following molecules do plants primarily produce using nitrogen obtained through nitrogen fixation?58views
Multiple ChoiceHow does nitrogen fixed by bacteria ultimately become available to herbivores and carnivores in an ecosystem?64views
Multiple ChoiceWhich organisms are primarily responsible for transforming atmospheric nitrogen (\(N_2\)) into a form that is usable by plants?73views
Multiple ChoiceAfter nitrogen is released from our bodies through waste or decomposition, which organisms are primarily responsible for incorporating that nitrogen back into the ecosystem?65views
Multiple ChoiceIn a diagram showing the root nodules of a leguminous plant, nitrogen-fixing bacteria are indicated by the letter(s) _____.75views
Multiple ChoiceWhich of the following pathways indicates how nitrogen is added to the largest nitrogen reservoir, the atmosphere?77views