Which of the following best describes the main purpose of the combined processes of glycolysis and cellular respiration? 1 breaking down atp, so that adp and p can be reused2. producing complex molecules from chemical building blocks3 the breakdown of glucose to carbon dioxide and water4 transforming the energy in glucose and related molecules in a chemical form that cells can use for work5 catabolism of sugars and related compounds

me two

explanation:

because i hate it

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.

i'd have to say the answer is probable the second option "the geosphere interacting with the atmosphere"