Question

a scientist is studying an organism and has classified it as an animal. which statement must be true about the organism? it is multicellular. it displays radial symmetry. it has a backbone. it contains cells without nuclei.

Explanation:

Animals are multicellular organisms. Not all animals have radial symmetry (many have bilateral symmetry). Not all animals have a backbone (there are invertebrates). Animal cells have nuclei (they are eukaryotic).

Answer:

It is multicellular.