Answer:
Before cell division must occur, the chromosomes must replicate themselves. Sister chromatids are the two initially identical copies.
Earth worms are hermaphrodites they contain both male and female sex organs in same individual. If necessary then they can fertilize their own eggs/
Answer:
The advantages of sexual reproduction: produces genetic variation in the offspring. the species can adapt to new environments due to variation, which gives them a survival advantage. a disease is less likely to affect all the individuals in a population.
Explanation:
