The queen bee has a crucial role in the colony. Without it, the colony will decline, the workers will stop performing their activities, and the colony will become disorganized. For workers, what is the cue that tells them that the queen is already old or sick?

How do social insects, such as ants, utilize trail pheromones to gather their resources?

Which of the following statements about rhodopsin is correct?

During sound transduction, the nerve endings transform the _____ into _____ which travel along the auditory nerve to the brain. 

The ossicles, which are part of the middle ear, amplify the sound and send _____ to the inner ear, which converts this into electrical impulses. 

Which of the following statements best describes the function of the cochlea in the human ear?

Identify the incorrect statement about the blind spot of the eye.