Answer:
Made mostly of collagen, bone is living, growing tissue. Collagen is a protein that provides a soft framework, and calcium phosphate is a mineral that adds strength and hardens the framework. This combination of collagen and calcium makes bone strong and flexible enough to withstand stress.
Answer:
D. Smoke from a fire
Explanation:
Smoke from a fire is the correct answer because it is made up of physical atoms. Sounds, light, and temperature are not made of atoms and are thus not matter.
I believe the answer is respiration
Heat is then the by-product of the light energy from the Sun flowing through the biosphere. Organisms are inevitably dependent on sunlight to perform essential biological processes in order to sustain life. In the absence of this energy, all the organisms on Earth would die.
