Which statement about cartilage and bone is correct?
a. an endoskeleton made of bone rather than cartilage allows animals to grow larger and heavier.
b. cartilage is less flexible than bone, but stronger.
c. cartilage is a hard tissue that consists of a collagen matrix, or framework, filled in with minerals such as
calcium.
d. a distinguishing feature of vertebrates is their exoskeleton made of bone or cartilage

Abeaker of water was heated and then placed on a bench in the laboratory. the water cooled until it was the same temperature as the air in the laboratory. which of these explains the mechanism by which the water cooled? a. heat energy was transferred from the water to the air. b. water molecules from the water formed warm water currents. c. the water molecules absorbed energy from the molecules in the air. d. the water released radiation until it contained no heat energy.