A major reservoir for oxygen is the atomosphere. Which of the following processes adds oxygen to the atmosphere?

What is a human cell

Water is water warmed by

4. Are single celled life forms more or less complex than multicellular organisms? Defend your answer

What is an advantage of eating food that contains complex carbohydrates instead of eating food that contain simple carbohydrates

If the temperature changes during a chemical reaction, what has occurred?

Isn't this correct?! (I chose A). My teacher marked it incorrect. What is a phenotype? A. the physical or detectable traits of an organism B. a type of biological diversity caused by environmental factor that affects the organism C.

Which of the following is a reason why geographic range can decrease? A. environmental change B. reaction to another species C. human interaction D. all of the above

What effect does sympathetic nervous stimulation have on digestion? A. Diarrhea B. Inhibits digestion C. Enhances digestion D. Vomiting

What was a primary reason for the revived popularity of the Ku Klux Klan?

A behavioral adaptation is ... Give at least 2 examples