Cytokinesis in plant cells | Cytokinesis is animal cells | ||
---|---|---|---|
1. | The division of the cytoplasm takes place by cell plate formation. | 1. | The division of the cytoplasm takes place by cleavage. |
2. | Cell plate formation starts at the centre of the cell and grows outward, toward the lateral walls. | 2. | Cleavage starts at the periphery and then moves inward, dividing the cell into two parts. |
Find the mean and variance for the following frequency distribution.
Classes | 0-10 | 10-20 | 20-30 | 30-40 | 40-50 |
Frequencies | 5 | 8 | 15 | 16 | 6 |