Im totally guessing here but im gonna go with choice b
The answer is B. Cnidarians
Cnidarian body has no left or right side, only tom and bottom surfaces. If you divide cnidarian a about central point, you will get equal parts. So, cnidarians are radially symmetrical animals. This group includes hydroids, jellyfish, anemones, and corals. In all groups, animals have stinging cells on tips of tentacles. They use them to capture the prey. Their name literally means stinging creatures.
Birds and reptiles lay amniotic eggs. They consist of a shell, embryonic membranes, and the embryo.
B. A light particle because it is the basic unit of all light. It is a quantum of energy with a visible wavelength
