Chemotherapy is a type of cancer treatment. It can result in hair loss due to damage to hair follicles - these are the cells that make hair. Suggest how this treatment works and why it often causes hair loss.

This is because chemotherapy targets rapidly-dividing cells throughout the body, aiming at the cancer but also affecting the healthy cells that produce hair on the scalp and all over the body.

the element that provides strength to the exoskeletons of clams and oysters is phosphorus. this is so because calcium carbonate is the main component in the shells.

explanation:

affects the water bodies: excessive use of fertilizers causes eutrophication. the fertilizers which are used on plants affect the quality of land on which it is used, further causing erosion of soil. the fertilizers used on plants contain harmful chemical fumes which affect the environment.