Scientists studying the same hypothesis about cancer have gotten the same result even though they have examined the hypothesis using procedures. what could be said about the subject they are studying? a)cancer cells may behave the same regardless of their environment. b)expiriments performed with cancer cells are not reliable. c)cancer cells behave differently depending on when they are experimented on. d)experiments performed with cancer cells are crude and elementary.

A)Cancer cells may behave the same regardless of their environment.

Option (A).

Explanation:

Cancer cells can be defined as cells that divide in an uncontrolled manner and have the ability to bypass apoptosis (normal cell death process). As given, scientists were studying a hypothesis about cancer cells.

They got similar results even when they examined the hypothesis about cancer by using procedures. It shows that the cancers cell may act same regardless of their surrounding conditions. For example, all cancer cells property of enormous growth and proliferation irrespective of their environment.

Thus, the correct answer is option (A).

a fossil fuel is a fuel formed by natural processes, such as anaerobic decomposition of buried dead organisms, containing energy originating in ancient photosynthesis.[1] the age of the organisms and their resulting fossil fuels is typically millions of years, and sometimes exceeds 650 million years.[2] fossil fuels contain high percentages of carbon and include petroleum, coal, and natural gas.[3] other commonly used derivatives include kerosene and propane. fossil fuels range from volatile materials with low carbon to hydrogen ratios like methane, to liquids like petroleum, to nonvolatile materials composed of almost pure carbon, like anthracite coal. methane can be found in hydrocarbon fields either alone, associated with oil, or in the form of methane clathrates.

the theory that fossil fuels formed from the fossilized remains of dead plants by exposure to heat and pressure in the earth's crust over millions of years was first introduced by andreas libavius "in his 1597 alchemia [alchymia]" and later by mikhail lomonosov "as early as 1757 and certainly by 1763".[4] the first use of the term "fossil fuel" was by the german chemist caspar neumann, in english translation in 1759.[5]

in 2017 the world's primary energy sources consisted of petroleum (34%), coal (28%), natural gas (23%), amounting to an 85% share for fossil fuels in primary energy consumption in the world.[6] non-fossil sources in 2006 included nuclear (8.5%), hydroelectric (6.3%), and others (geothermal, solar, tidal, wind, wood, waste) amounting to 0.9%.[7] world energy consumption was growing at about 2.3% per year. in 2015 about 18% of worldwide consumption was from renewable sources.[8]