David works at an adhesive manufacturing plant. which industrial solvent is he likely to use?
a.
ozone
b.
carbon
c.
nitrogen oxide
d.
methyl chloroform

Why do leaves change color in the fall? green pigments break down and no longer mask the color of chlorophyll. chlorophyll breaks down and no longer masks the colors of other pigments. red- and yellow-colored pigments grow and mask green-colored chlorophyll. green-colored chlorophyll breaks down and turns red and yellow.

Match the functions to the cell types ? contraction and relaxation. conducting electrochemical signals fighting diseases carrying genetic material

Hemoglobin is a proton that carries oxygen around your body what is hemoglobin made from