Where does the koala belong in the cladogram shown below?
g
placental
limbs
jaws
segmented body
multicellular
unicellular
common ancestor

What is the independent variable in this investigation? mass volume sample number substance density

What is a substance? a. a physical property of matter b. a chemical property of matter c. an element or compound that cannot be physically separated d. characteristics used to tell the difference between mixtures

How many peaks will be present in a mass spectrum for brcl?