Describe the benefits to using tissue cultures to study medications used for treating cancer cells

Medications can be tested on cell cultures instead of being injected into patients unnecessarily.

Cancer cells continue to grow in the cultures uncontrollably allowing scientists to test multiple medications on the cancer cells.

Specific treatments that are shown to fight the growth of cancer cells in the culture can be used on patients.

Cultures are safer to use than injections of unneeded medications into patients.

the "dirty dozen" chemicals banned in an international treaty are formally known as persistent organic pollutants, or pops. the united nations environment program provided this background on what they are and what they can do to humans and wildlife.

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the menstrual cycle – higher tier. negative feedback mechanisms affect the production of hormones in the menstrual cycle. oestrogen also stimulates the release of lh (luteinising hormone) from the pituitary gland, which in turn controls the production of progesterone.