A potometer, or transpirometer, is a device used to measure the rate of transpiration, or the rate of loss of water, from the leaves of a plant.d. One type of potometer design commonly used in the biology classroom is the bubble potometer, where the rate of movement of a bubble of air inside a column of water is used to measure the transpiration rate of a plant.
A sphinx is a mythical creature with the body of a lion, most often with a human head and sometimes with wings. The creature was an Egyptian invention and had a male head - human or animal; however, in ancient Greek culture the creature had the head of a woman.
The lion (Panthera leo) is one of the five big cats in the genus Panthera and a member of the family Felidae.The commonly used term African lion collectively denotes the several subspecies found in Africa. With some males exceeding 250 kg (550 lb) in weight, it is the second-largest living cat after the tiger.he lion's closest relatives are the other species of the genus Panthera: the tiger, the jaguar, and the leopard. P. leo evolved in Africa between 1 million and 800,000 years ago, before spreading throughout the Holarctic region.