Acontains paired statements that can be used to identify organisms.

Which of the following is not a part of the respiratory system? a. pharynx b. trachea c. pancreas d. larynx

Awave is produced in a rope. the wave has a speed of 33 m/s and a frequency of 22 hz.

In a stagnant pool of water, a crayfish may spend much of its time lying with one side of its carapace near the surface of the water. in this position, it will move the walking legs on that side in a rhythmic back-and-forth motion. explain the likely function of this behavior.