Which theory explains cells and living organisms? a. science theory b. organism theory c. cell theory d. world theory

Option C, Cell Theory

Explanation:

The cell theory states the following -  

a)Call living organisms are made up of cell and hence cell is the basic unit of life is cell.

b)New cell develops from the old cells after their division through the process known as cell division.

c)All living organisms are composed of either one cell (Unicellular) or more than one cell (multicellular)

d)Cell contains the genetic information of an individual  

Hence, option C is correct.

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.