Drag each description to the appropriate category. This provides your body with heat and energy.

Plants store energy in this form.

This is made of carbon, hydrogen, and oxygen.

This makes up the cell walls and fibers of plants.

This is the most abundant organic compound on Earth.

starch

cellulose

carbohydrate

Significant figures are digits read directly from the measuring instrument plus one more digit, which is __ by the observer.

What is the atomic mass of an atom that has 6 protons, 6 neutrons, and 6 electrons? a) 6 b) 8 c) + 1 d) 12 e) 18

Ageochemist examines a piece of metal that he found in the soil. he performs tests to identify the metal from its density, electrical conductivity, and melting point. which statement best describes his investigation? a. he is determining physical properties that are sufficient to identify the metal. b. he is determining chemical properties that are sufficient to identify the metal. c. he is determining physical properties that are insufficient to identify the metal. d. he is determining chemical properties that are insufficient to identify the metal.