Organelles exist within cells, which exist within tissues. Communities exist within ecosystems, which exist in the biosphere.
Do you have any choice answers? As far as I know, the organisms that appeared first was micro-organisms. Hope this helps.
Answer:
D) Ciliated simple columnar epithelium
In the event that the new hypothesis gives a superior expectation about the places of the planets and sun in the universe, then the old hypothesis must be altered or disposed of for the new hypothesis. That is the thing that keeps science "genuine". We change the models we utilize when better data goes along.
