Answer:
D. display an asymmetrical body plan
Explanation:
Most of the animals have bilateral symmetry but sometimes animals show asymmetrical body plan.
Rest of the options are wrong.
Animals are always multicellular and there is no exception to this fact. So, if we will write sometimes animals are multicellular, it will be a wrong statement.
Animals are eukaryotic organisms so it means that they must have membrane-bound organelles
.The organisms which do not have membrane-bound organelles are known as prokaryotes but animals are eukaryotes. So B statement is wrong.
All the animals are heterotrophs that means that animals cannot produce their own food in any situation so statement C is also wrong.
