A composition of a crushed rock sample was investigated using atomic emission spectroscopy. After dissolving in acid the rock sample solution was heated to produce an emission spectrum. Shown below is this emission spectrum, along with those of five metals. Based on this spectral analysis it can be concluded that the rock sample contains

The diagram shows the structures of horse and cat forelimbs. what does the diagram suggest about the evolutionary relationship between these two mammals? a. they have homologous structures, indicating a common ancestor. b. they have analogous structures, indicating a common ancestor. c. they have homologous structures, indicating that they do not have a common ancestor. d. they have analogous structures, indicating that they do not have a common ancestor.

Consider the story you just read. all but one of the choices below indicate that something is living.

How many oxygen atoms are there in 3.15 moles of hcl manganese (iv) oxide, mno2