why would your girl not chat with you after like 3 days? me and mine haven't at all on here the last three i feel sad to and down a lot

Give the biological term for: structures that display characteristics of living organisms only within living cells

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.

Diagram of the evolution of land plants?