Endoskeletons

• An endoskeleton is a hard outer covering that provides support and protection to an organism's body.
• An endoskeleton is an internal framework of bones or cartilage that provides support and protection to an organism's body. (correct)
• An endoskeleton is a soft and flexible structure that provides support and protection to an organism's body.
• An endoskeleton is an outer covering made of scales or plates that provides support and protection to an organism's body.

• An endoskeleton is found in plants.
• An endoskeleton is found in invertebrates.
• An endoskeleton is found in both invertebrates and vertebrates.
• An endoskeleton is found in vertebrates. (correct)

• An endoskeleton is only found in animals.
• An endoskeleton is found in plants.
• An endoskeleton is found in both humans and animals. (correct)
• An endoskeleton is only found in humans.