Answer:
Temperature
Altitude or Elevation
Moisture or water vapour.
Explanation:
Carbon Monoxide would have been mostly to effect the embryo as it targets the respiration system.
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During mitosis the four centrioles appear visibly and move to the ends of the nucleus one pair at each end<span> then they produce a series of threads that attach to the chromosomes During cell division the threads split the chromosomes and drew them towards the centrioles</span>
Answer:
Anything that has mass and occupies space.
Explanation:
