The membranes of neurons at rest are very permeable to _____ but only slightly permeable to _____. K+; Na+. Yes, more K+ moves out of the cell than Na+ moves into the cell, helping to establish a negative resting membrane potential.
The Falabella miniature horse is one of the smallest breeds of horse in the world, seldom taller than 8 hands (32 inches, 81 cm) in height at the withers.The Falabella, despite its size, is not considered a pony, but rather is a miniature horse.lack or red leopard-spotted Falabellas (resembling, but not the same as the Appaloosa horse breed) also exist, but are not common. Falabella foals are very small, standing around 30 to 56 cm (12 to 22 in) tall at birth, and maturing to their adult height by the age of three.
Black Beauty is a dwarf miniature horse and at age five years-old currently measures on 18.5 inches tall (at her withers) and she is clearly the world's smallest horse, and the smallest horse in recorded history according to the Guinness Book of Records.