The diagram below shows the life cycle of a frog
Three stages of the life cycle have been labelled A, B and C
Identify the two stages at which cell division takes place. Describe the similarities
and differences between the cell division at these two stages
The quality of written communication will be assessed in your answer.

Secondary pollutants are more harmful than primary pollutants. select the best answer from the choices provided ot of

'which of these statements about the scientific method is not true? all experiments must follow the same number of steps in the procedure. experiments may be repeated several times. some unexpected results can be beneficial. experimental results may or may not support the hypothesis.

Agroup of students is studying convection currents. they fill two identical balloons with the same amount of helium. one balloon is placed in a freezer and the other in an area with warm air. after 10 minutes, the balloons are released from a height of 1 meter. which of the following do the students most likely observe? question 8 options: the cold balloon expands and rises. the warm balloon shrinks and sinks. the balloons rise at the same rate. both balloons are the same size. the ballons both rise. the cold ballon is larger than the warm balloon. the warm balloon expands and rises. the cold balloon shrinks and sinks.