When is osmosis used by cells to move water across a selectively permeable
membrane?

A. Osmosis is used by cells when large molecules pass freely across the selectively permeable membrane.

B. Osmosis is used by cells to create equilibrium when large molecules can't pass through the membrane.

C. Osmosis is constantly in process inside of a cell, regardless of equilibrum.

B.

Explanation:

Osmosis moves water from the part of the membrane with less solutes to the part with more solutes. This will continue until the cell or whatever it is reaches equilibrium.

the oldest known insects are believed to live around 400 millions ago as suggested by the fossil records.   some plants having woody stems also evolved during this time.

after the evolution of insects the first four legged species or the tetrapods evolved in shallow freshwater habitats from the intermediate species approximately 397 million years ago. the tetrapods went on conquering the land giving rise to amphibians, reptiles, mammals and birds.

the major split in tetrapods first occurred 340 million years ago branching off from amphibians.

363 million years ago when the carboniferous period began the insects started roaming on land and taking flights, following which the four limbed tetrapods adapted in the terrestrial habitat.