Liver of frog OR liver of Human do the same function. it produces bile and cleans waste products from the body. It filters the food of the frog by separating the nutrients and the not needed things of the frog's food. The liver aids in breaking down foods.
Shapes with Parallel Sides. There are several shapes that have parallel sides as a distinguishing feature. The most common are the parallelogram, the rectangle, the square, and the trapezoid. These are the ones that you will most often hear about as having parallel sides. The trapezoid has one pair of parallel sides. The parallelogram, rectangle, and square all have two pairs of parallel sides. Other less common shapes with parallel sides include any of the '-gons' with an even number of sides, such as a hexagon, octagon, decagon, etc.
1 Square (regular quadrilateral): all four sides are of equal length (equilateral), and all four angles are right angles. 2  An equivalent condition is that opposite sides are parallel (a square is a parallelogram), that the diagonals perpendicularly bisect each other, and are of equal length.