The Akiapola'au uses its long top bill to probe for insects in trees. The beak is an example of of?

thanks for your points

liquid crystals are matters in a state which have properties between those of conventional liquids and those of solid crystals[1]. liquid crystal is partially ordered and anisotropic. in terms of molecular order, liquid crystal molecules have one-dimensional or two-dimensional long - range order.

the dark variety, as they are not visible on the dark tree barks

explanation: