Evolution - work card I need it fast! It would be great if someone helped me solve these tasks because I don't really understand them... I appreciate your help <3

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.

The distant ancestors of tigers may have had bodies without stripes. use the theory of natural selection to explain how tigers may have evolved to have stripes.

What’s the student’s scientific question