Which describes most woody stems? flexible smooth rough green

rough

The dermal tissues of the stem are covered by the epidermal layers this layer covers the underlying tissues. The woody plants exhibit a tough, waterproof outer epidermal layer which is called as bark. This layer is made up of cork cells. This layer is rough in texture and protects the plant from damage. The rough texture describes most woody stems.

when the displaced particles are perpendicular to the direction the wave travels, is called a transverse wave, whereas in longitudinal wave the displace practices are parallel to the direction of the wave.

in the given image:

first image shows - longitudinal wave

second image shows - transverse wave

third image shows - longitudinal wave

fourth image shows - longitudinal wave