Select the methods and results that best illustrate sustainable crop intensification. •high labor
•high-yield, low ecological impact
•high use of synthetic fertilizer
•heavy use of irrigation
•high cost
•low cost
•low pesticide use
•GMO drought-tolerant seeds

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.

How are mutations continually being generated in a population (what are some of the causes of mutatuions? ) explain

2. which is the last step in the scientific method?