Living cells require constant access to energy in order to remain alive. which statement best describes why cells need a constant supply of energy? a) without energy, cells would not be able to access food resources. b) without energy, cells would be forced to enter into a state of dormancy. c) energy is required to process genetic information--without an active dna molecule, cells will be unable to function. d) energy is required in order to maintain homeostasis--without a constant, organized internal state, the cell will die.

The correct answer will be option-D

Explanation:

Utilizing energy is one of the eight characteristics of the living organism biologist identified to remain alive.  

Homeostasis is the characteristic, organism developed to survive which refers to maintain the internal conditions of the body irrespective of their environment.

The organism invests 70-90% of their energy in maintaining their internal conditions like in mammals which shows that a large proportion of energy is required by the organism to maintain their homeostasis.

Thus, option-D is the correct answer.

during the process of dna replication, brdu can replace thymidine and incorporate into the newly synthesized dna, cell proliferation thus can be reflected in the extent of brdu incorporation.