Respuesta :
Organism that are composed of many cells working together to form tissues ,organ and organ system are multicellular .
What are multicellular organism ?
A multicellular organism is an organism that consists of more than one cell, in contrast to a unicellular organism.
What organism are multicellular?
All species of animals, land plants and most fungi are multicellular, as are many algae, whereas a few organisms are partially uni- and partially multicellular, like slime molds and social amoebae such as the genus Dictyostelium.
Hence ,option D is correct
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