Match the compound with the correct element contained within it. question 1 options: copper
zinc
magnesium
iron
carbon,
hydrogen, nitrogen, oxygen, phosphorus, and calcium.
cobalt
1. chlorophyll 2. hemoglobin 3. 300 enzymes 4. 30 enzymes 5. vitamin b12 6. organic compounds such as carbohydrates, lipids, proteins, and nucleic acids.

Acm ruler with main graduations from 1 to 10 from left to right there are 10 secondary graduations between each of the main graduations there is a line that begins. at the left end of the ruler 10 secondary graduations to the left of the “1 main graduation the right end of the line ends on the eighth secondary graduation to the right of 3 how long is the line