The mean weight of 45 boys is 65kg and 37 girls is 45kg and that of 5 teachers is 70kg. What is the average weight of the whole class included the teachers?

5

explanation: 4

during telophase ii , nuclear membranes form. telophase is the fifth and final stage of mitosis. there are two different types of telophase, i and ii. telophase i is the final step in meiosis i and telophase ii is the final step in meiosis ii. the main difference between telophase i and telophase ii is that homologous chromosomes are separated   from each other during telophase i and sister chromatids are separated at the centromere during telophase ii.