When the first digit and the last digit of a five-digit number, which is a multiple of 72, are erased, we get 679. What is the number?

Which among the following is NOT a part of compound microscope?

In a polygon, what is the maximum number of acute angles possible?

Find out prokaryote from the following.

The figure shows two rectangles, one upright with sides 3 cm and 4 cm, and the same rectangle shown slanted (rotated) within the figure. What is the area of the slanted rectangle in square centimeters?