What nitrogen cycle process is occurring in the root nodules in the illustration?

a.) ammonification
b.) denitrification
c.) fixation
d.) nitrification

Are characterized by dry conditions, limited vegetation and wide temperature range. a.) tropical rain forests b.) deserts c.) grasslands d.) none of the above

Explain why ecosystem diversity results in species diversity in a healthy biosphere

This is a situation in which genes are attached to an organism's sex chromosomes; the sex of an organism influences the expression of a gene.