Một tế bào có 2n = 8 nhiễm sắc thể, sau 5 lần nguyên phân liên tiếp thì tổng số nhiễm sắc thể trong các tế bào con là bao nhiêu?

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Circle the word with a different stress pattern from the other 1. A. industry B. tornado C. natural D. injury 2. A. geography B. electronic C. scientific D. preparation 3. A. debris B. rainstorm C. destroy D. shelter 4. A. primary B. animal C. tropical D. volcano 5. A. climatology B. bibliography C. communication D. radiography Choose the correct answer 6. What can be done to protect people from __________ disasters? A. environment B. environmental C. environmentally D. environmentalist 7. Emergency teams are still clearing the __________ from the plane crash. A. debris B. dust C. piece D. waste 8. The government is sending __________ to the flood victims. A. touch B. aid C. accommodation D. provision 9. Much of the town was rebuilt after the massive __________ of the tornado. A. peace B. humor C. destruction D. safety 10. New Zealand rescue services carried out several searches for __________. A. movers B. helpers C. rescuers D. survivors 11. The government has declared a state of __________ following the earthquake. A. accident B. situation C. extension D. emergency 12. The __________ are searching through the rubble for survivors. A. rescuers B. washers C. fighters D. builders 13. Many countries have sent humanitarian aid to the earthquake __________. A. victims B. soldiers C. elders D. rescuers 14. Thousands of buildings and houses were destroyed when the earthquake __________ the city. A. fought B. struck C. happened D. arrived 15. The forest fire __________ for eight hours, killing all of the animals. A. burst B. occurred C. raged D. spread