You discover a new life-form, and study it under an electron microscope. you find that its cells have a peptidoglycan cell wall, fatty acids in its plasma membrane and no organelles. you conclude that the new life-form is in which domain?

              The new life form will come in domain of bacteria.

Explanation :

                   As we know that there are certain characteristic of bacterial cells which are listed below.

Composition of cell wall :

                                        Cell wall of bacteria is composed of carbohydrates protein complex known as peptidoglycan .

Presence of organelles :

                                       Bacterial cells lack all organelles except ribosomes

Presence of fatty acids in plasma membrane

The plasma membrane of bacterial cell is composed of a lipid bilayer made up of phospholipid. It contains fatty acids

Conclusion

                In microscopic studies of new organism all the characteristics features of bacteria have been found. So, this new life form belong to bacteria.

more words for this could be abiotic and biotic

abiotic: living organisms within an ecosystem

biotic: non-living organisms within an ecosystem