In 1665, Robert Hooke observed D. Cell Walls through a microscope!
The correct answer is - Theory of the Ekman spiral
V. W. Ekman or Vagn Walfrid Ekman was a Swedish physical oceanographer. He is famous for his studies of the dynamics of ocean currents. Ekman developed a theory called as the “theory of the Ekman spiral”. This theory explains maintaining balance between frictional effects in the ocean and the Coriolis force. The force arises from moving objects in a rotating environment such as planetary rotation.
Some species cell division produces reproductive cells in sexually reproduce organisms
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Answer:
see explanation
Explanation:
prophase, the condensation of the chromatin and the disappearance of the nucleolus
metaphase: chromosomes align in the equator of the cell before being separated into each of the two daughter cells.
anaphase: chromosomes are split and the newly-copied chromosomes are moved to opposite poles of the cell.
interphase: G1, S, G2
telophase: nucleoli reappear, and chromosomes begin to come back into the expanded chromatin that is present during interphase.
