I've seen this logic puzzle before. You're counting the number of circles in each digit. Each 9 has one circle, each 8 has two, etc. 1919 has two circles, so 1919 = 2.
Answer:
y=px^2/4
Step-by-step explanation:
Answer: the chromosomes become visible as paired chromatids and the nuclear envelope disappears
Step-by-step explanation:
prophase is also the first stage in cell division.