Question

Corals and anemones are
A. Plants which can’t make their own food
B. Plants which can move
C. Animals which can make their own food
D. Animals which can’t move

Answer 1

Hint: The true coral animal is soft-bodied, including tentacles just like a sea anemone. Corals, therefore, belong to the same group of species as jellyfish and sea anemones. They're all from Phylum Cnidaria. They look identical, but they're different in a variety of important ways.

Complete step by step answer: We can rule out the first two options since both anemones and corals are actually animals. They are not plants for sure, even though some have zooxanthellae in their tissues that help them acquire a portion of their nutrients. But, there are several types of anemones and corals, which vary in the way they take in nutrients, which is often used to help identify the differences between them. One particular way to say the difference is that anemones are typically singular and corals are usually found in colonies, let me emphasise that this is generally the case, however in science there are few exceptions to the rule and I will not go into that for this example — anemones and some coral species live in isolation; however, most corals form colonies of the genetically identical polyps.So they are animals which can’t move.
Hence, Option D is the right answer.

Additional Information: In general, soft coral anatomy has eight-fold symmetry or eight-branched tentacles in its polyp form. There is a wide range of shapes, but all soft corals have the same morphology. They are called soft because, unlike stony corals, they do not have a rigid calcium carbonate skeleton. They are mainly made up of living tissue, but they have tiny calcareous components called scleritis.

Note: For food, the polyp employs these tentacles for protection, to catch small animals for food, and to extract debris. The food goes from the mouth into the stomach. Once the food has been eaten, the waste products are expelled through the same opening. These would be the high-level similarities between the two.