<span> Negative staining method is used to view viruses, bacteria, bacterial flagella, biological membrane structures, lipid aggregates and proteins or protein aggregates, which all have a low electron-scattering power. This method is used to view cells or certain organelles of cells more clearly under the microscope in the field of microbiology. </span>
Answer: Reproductive problems from imbalanced hormones can occur when abnormal levels of estrogen and androgen sex hormones develop, and can cause infertility and other health issues.
