The cells in your body need nutrients and other materials to stay alive. to be used by your cells, the materials must be
a. slightly acidic
b. eukaryotic
c. dissolved in fluid
d. transgenic

Which sentence best expresses the differing opinions of these two book reviews?

Liquid water turns into water vapor at which step in the water cycle? a. precipitation o b. water run off c. evaporation d. condensation

Which sentence best describes the relationship between chlorophyll and the chloroplast? a.) chlorophyll is a chemical found in a chloroplast. b.) chloroplast is a chemical found in a chlorophyll. c.) both chlorophyll and chloroplasts are found in animals. d.) both chlorophyll and chloroplasts make carbon dioxide.