Why can a cell not survive under conditions of unlimited growth?

Cell depend on dependent upon exogenous signals for survival, growth, and proliferation. The growth factor influencing cell growth can be examined using a signal molecule called interleukin-3(IL-3).

The cells having dose of interleukin-3 below threshold undergo apoptosis or natural death, otherwise unlimited growth can cause cancer.

As per the study, high rate of growth factor results in shortening of G1 phase of the cell cycle and leads to more rapid proliferative expansion. the cells which grows under high concentrations of growth factor are more susceptible  to cell death during growth factor withdrawal.

Hence, cell are not able to survive under conditions of unlimited growth.

i'm sorry, but can you list the answers? i cannot with something i don't know the answers to

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chris

c. earths continental crust is thicker than its lithosphere.

because, the lithosphere is the outermost layer of the earth/ 100 km thick and is defined by its machanical properties.the lithosphere contains oceanic and continental crust that varies in age and thickness across locations and geologic time. the lithosphere is the coolest layer of the earth in terms of temperature. the term lithosphere should not be confused with the use of "geosphere" which is used to indicate all of earth systems, including the atmosphere, hydrosphere   and biosphere. the surface of the earth can be divided into the continental crust and the oceanic crust.   the continental crust is made mostly of granite while the oceanic crust is made of basalt. the average thickness of the continental crust is 25 miles and the average thickness of the oceanic crust is 5 miles.   three types of rock, igneous, sedimentary, and metamorphic, make up the surface of the earth. that's why 3 option is preferable.