Ive heard that the large amounts of dust hindered the sun and growth of plants
Thirty-eight because the chromosome pairs are 19 and therefore, no. of chromosome will be 38.
It created an opportunity for the mammals to become dominant on earth by wiping out the dinosaurs.
Answer:
The correct answer would be elongation.
Cell elongation is defined as the lengthening of a cell during differentiation of a cell. It takes place during growth of an organism or during movement in mature plants.
In plants, it is primarily regulated by light and plant hormones like auxin.
Auxin modifies the structure of the cell wall which helps the cell to elongate.