4 sentences with “membranes”

Alteration in the permeability of cell membranes, modifying cell metabolism.

Aquatic animals show adaptation to the environment in their bodies, such as the fins of fish or the membranes between the toes of frogs (interdigital), which allow them to move easily in the water.

Pterosaurus avoided moving on land, as the membranes on their "hands" made it difficult for them to move and they were victims of injury. They began by gliding slowly through the sky and resting on high rocks, from where they could more easily take flight.

The ancient pterosaurus had forelimbs ending in a "hand" with a highly developed fourth finger and showed, on the sides of the body, large folds of skin, similar to the membranes of bats, which, together with the arms and the fourth finger, formed a primitive wing, lacking central armour and very vulnerable.