During the cell cycle, specifically g1 interphase, a cell must reach a sufficient size and produce enough atp in order to a) undergo mitosis. b) undergo cytokinesis. c) produce 2 daughter cells. d) replicate its chromosomes.

The correct answer will be option-D

Explanation:

The cell cycle is the cyclically ordered sequence of events taking place in the cells associated with the division of the cell.

The cell cycle takes place in two phases: the interphase proceeded by M-Phase. The interphase of the cell cycle proceeds in G₁, S and G₂ phase. During the G₁ phase, the cell prepares itself to prepare for the next important phase marked by the synthesis or replication of the genetic component of the cell.

The changes that take place during the G₁ phase thus includes the increase in size and the production of ATP as DNA replication is an energy-dependent process.

Thus, Option-D is the correct answer.

b. lithosphere, asthenosphere, mesosphere   is the answer most likely