Which of the following statements is true? the buildup of carbon dioxide in the atmosphere causes the greenhouse effect. an increase in pressure causes an increase in reaction rate. the formation of gas bubbles is an indication of a chemical change. all of the above

What would be the result if crossing over did not happen during meiosis in humans? a. there would be less genetic variation in humans. b. parents would be more likely to look like their children. c. the human population could not reproduce. d. children would have more chromosomes.

Acell goes through cellular respiration and produces atp which it then uses to move a molecule across the cell membrane. how does the energy in the original glucose molecule change during this process? (2 points)

What factors contribute to the effect an environmental toxin has on the human body?