The answer should be A plant cell
Researchers have identified specific gene variants in the receptors that detect sweetness: TAS1R2 and TAS1R3. There is also high variation in the detection of bitterness. However, the story is more complicated than sweet taste, as we have 25 receptors that detect different bitter molecules
Starfish has a endoskeleton
a coral has a exoskeleton
sponge has neither
Google said hydrogen so I'm guessing B. gases
B! Is the answer welcome:))
