Which statement BEST describes the difference between chemotherapy and biological therapy? Biological therapy is all natural therapy, where chemotherapy uses harsh toxins.
Biological therapy is involves radiation; chemotherapy involves drugs.
Chemotherapy targets the cell directly; biological therapy tries to help the immune system so it will attack the cancer cells.
Chemotherapy is given over an extended period of time, where biological therapy is given only once.

Chemotherapy targets the cell directly; biological therapy tries to help the immune system so it will attack the cancer cells.

Explanation:

Both chemotherapy and biological therapy are approaches used in cancer treatment.

Chemotherapy involves the use of aggressive anti-cancer drugs. It targets cancer cells directly with the goal to destroy them.

Biological therapy, also called immunotherapy, is a type of treatment used in battling diseases by activating or suppressing the immune system. It is also used in cancer treatment. Its goal is to boost the immune system and help it fight against cancer.

sodium i think the chemical element of atomic number 11, a soft silver-white reactive metal of the alkali metal group.