Scientists use tissue cultures to study possible medicines that can be used to treat cancer patients. what is one benefit of this procedure? patients do not receive harmful or ineffective medication. the cultured cells are not in their normal environment. doctors know how to treat all types of cancer. one tissue culture can be used for all cancer patients.

the answer is B

Explanation:

Patients do not receive harmful or ineffective medication.

Explanation:

Patients do not receive harmful or ineffective medication is the correct option this is because of the fact that in tissue culture clinical trials are performed over the cultured cells for a drug or medicine to be tested if the results obtain are satisfactory than the medicine or drug is considered for the treatment of the patient.

In this process the patients are not harmed by testing the possibility of the treatment with the medicine. As the medicines can be ineffective.

the correct answer is 4) heat and pressure

metamorphic rocks arise from transformation of existing rocks types, in a process called metamorphism. during metamorphism the original rock(prolith) change into metamorphic rock by heating (150-200c) and pressure of more than 1000 bar. the original rock can be sedimentary, igneous, or existing metamorphic rock.

the answer is lactic acid from anaerobic respiration. the acid in lactic acid is what creates sore and burning muscles. if you think about how acid burns that will give you a clue for questions like this.