Hey there Brainly peep!
They can respond to changes in their environment which the answer is
D. Mollusks and arthropods can respond to changes in their environment, while jellyfish and sponges cannot.
Hope this helped
Answer: Unicellular organisms are made up of only one cell that carries out all of the functions needed by the organism, while multicellular organisms use many different cells to function.
A sunflower is a shade of yellow
