Two choice sorting device used in taxonomy

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.

Which of the following produces carbon dioxide? a. plants b. animals c. decomposers d. all of the above

The combining form leuk/o means red true or false