ANGELMAYMONTERASGO ANGELMAYMONTERASGO Science Answered 1. One celled organisms are called______. a. unique b. unicellular c. organelle d. multicellular 2. lt is considered as the building block of life. a. atom b. cell c. elements d. heart3. Who first used the term cell as the tiny structure found in an organism.a. Robert Hooke b. Anton Van Leeuwenhoekc. Matthias J. Schleidend. Rudolf Virchow 4. Who created the first microscope?a. Robert Hooke b. Anton Van Leeuwenhoekc. Matthias J. Schleidend. Rudolf Virchow5. Jelly like substance where all other cell parts are located is called_______? a. Cytoplasm b. Cytoskeleton c. Plasma membraned. Nucleus