8 Compare Use the Venn diagram below to relate
how energy and matter move through ecosystems.
Matter
Energy
Both
O Houghton Mifflin Harcourt Publishing Company image Credits: Gary Cabba/Alamy
Energy and
matter are
conserved.
Lesson 3 Energy and Matter in Ecosystems 357

The graph below compares the rates of reaction of a burning candle and an exploding firework. comparing chemical reactions what can you conclude from the graph? the reaction that causes a firework to explode requires less energy to start, and occurs more rapidly than the reaction that causes a candle to burn. the reaction that causes a firework to explode requires less energy to start, and occurs less rapidly than the reaction that causes a candle to burn. the reaction that causes a firework to explode requires more energy to start, and occurs less rapidly than the reaction that causes a candle to burn. the reaction that causes a firework to explode requires more energy to start, and occurs more rapidly than the reaction that causes a candle to burn. mark this and return

Anne, an intern in a microbiology lab, was observing the characteristics of various specimens of protists. match each specimen to the category of protist to which it belongs.

Which of the following best describes the relationship between glucose and complex molecules such as hormones?