Cyanobacteria like Anabaena and Nostoc help convert atmospheric nitrogen into plant-usable forms.
Cyanobacteria such as Anabaena and Nostoc are known for their ability to fix atmospheric nitrogen into usable forms for plants, enhancing soil fertility.
Two important characteristics for estimating any population of animals and plants are \(\underline{\hspace{2cm}}\) and \(\underline{\hspace{2cm}}\) of individuals.
Demography is the study of factors that affect \(\underline{\hspace{2cm}}\) and \(\underline{\hspace{2cm}}\) patterns.