What is the main difference between a producer and a consumer? Give an example to support your answer. (middle school work)

The breakdown of food is accomplished by enzymes. a. physical b. chemical c. mechanical d. none of the above

What's the waste product of electrons and pyruvate combining in fermentation?  

The lake of the ozarks is a human-made lake, so it collects runoff from coal strip-mining, fertilizers, resort wastewaters, and septic drainages. the average lake temperature is between 10∘c and 21∘c. consider the physical requirements for growth and multiplication that would allow fecal coliforms to “blossom” in the lake of the ozarks. which of the following would accurately describe these organisms? check all that apply. psychrophiles facultative halophiles extremophiles mesophiles hyperthermophiles