Question

Sea corals live exclusively in the ocean and are radially symmetrical. They have microscopic stinging barbs that shoot out to immobilize their prey. This allows corals to hunt even while they are stuck to the ocean floor. What animal phylum do corals belong in? chordates mollusks cnidarians annelidsA scientist found a new species in a rain forest. The species was small and green in color. She examined one of its many cells and found that the cell had a nucleus but no cell wall.

To which kingdom does this species most likely belong?

plants, because it is green and small
bacteria, because it is small and has a nucleus
fungi, because it is green and has no cell wall
animals, because it is multicellular with no cell wall

Answer 1

Corals are animals. The branch or mound that we often call “a coral” is actually made up of thousands of tiny animals called polyps. A coral polyp is an invertebrate that can be no bigger than a pinhead to up to a foot in diameter.