Which of these is the definition of an animal?
A multicellular organism that is able to move to acquire other organisms for food, has a digestive system to break down food, and possesses sensory and nervous systems that are able to detect and quickly respond to a stimulus.
A developmental stage of an embryo in which a single layer of cells is surrounded by a space filled with fluid.
A multicellular eukaryote with cell walls made of cellulose that is capable of performing photosynthesis.
A cut through the organism or object in the center from any plane or direction.
The definition of an animal is:
A multicellular organism that is able to move to acquire other organisms for food, has a digestive system to break down food, and possesses sensory and nervous systems that are able to detect and quickly respond to a stimulus.