The human skeletal system is an example of how function depends on structure. Which statement describes the relationship between the structure and function of the human skeletal system?
A. The skeletal system provides a frame to support and protect the body and allows the body to move.
B. The skeletal system breaks down food into nutrients that the body can use.
C. The skeletal system returns fluids to blood vessels and helps get rid of bacteria and viruses.
D. The skeletal system receives information about the body and the environment and responds to that information

Every compound can be represented by a chemical formula. a chemical formula is the set of symbols showing the elements that make up a compound and their proportions. water’s chemical formula is h 2 2 o. that means a molecule of water contains two atoms of hydrogen and one atom of oxygen chemically bonded. a molecule is a group of two or more atoms bonded together. molecules can range in size from two to thousands of atoms. a molecule of a compound is the smallest unit of that compound. every molecule of water has all the physical and chemical properties of water. that’s because every molecule of water is made of the same elements in the same proportions: two hydrogen atoms and one oxygen! which of the following is a true statement? a every molecule of the same compound will have different properties. b every molecule of a compound has the same proportion of elements. c molecules can be physically separated into smaller units of a compound. d molecules cannot be represented by chemical formulae.

Where substance is produced during cellular respiration

26 a medida que cambia el clima, ¿qué tipo de reproducción más probablemente de a una especie mayores posibilidades de supervivencia?