The greater the force that produces a wave, the greater the amplitude of the wave and the greater the energy carried by the wave. In a transverse wave the higher the wave, the higher the amplitude. Sounds with greater amplitude will be louder; light with greater amplitude will be brighter
The Gecko. While human-made devices inspired by gecko feet have emerged in recent years, enabling their wearers to slowly scale a glass wall, the possible applications of gecko-adhesion technology go far beyond Spiderman-esque antics. A researcher is looking into how the technology could be applied in a high-precision industrial setting, such as in robot arms used in manufacturing computer chips.
Answer:
all of these are echinoderms
I’d go with C hope it helps