While an organism is developing, a process called “apoptosis”, or programmed cell death, leads to suiicide of certain cells. an example is in the tail of tadpoles. once a tadpole is mature enough to turn into a frog, the tail cells receive a “death signal” chemical, and the cell responds by shrinking, breaking up the nucleus, and then being completely destroyed by another frog cell. the chemicals that were within the tail cell are often recycled, and used to build new cells in the main body of the frog.
during apoptosis, which cellular organelle does the work of breaking up the nucleus and causing the cell to die?

a) ribosome

b) lysosome

c) mitochondrion

d) golgi apparatus

Zoe decided to measure the hand length of each of her classmates. first she marked a line across each student's wrist and lined up a ruler from this mark to the top of the middle finger to measure the length. then she recorded the measurements in the table below. marla did this the same way for each classmate, and then zoe used this ruler to measure each straight line and record the data below. this data is invalid. what is the most likely reason why it is invalid? the ruler is marked in centimeters, but zoe recorded data in inches. the range of lengths is too wide, so zoe must have misread the ruler. marla’s complicated measuring procedure was overly confusing. marla could have been inconsistent while drawing outlines of fingers.