Exam 40: The Senses

Owls have many anatomical modifications that enable them to hunt at night. For example, some of their feathers are serrated on the edges, which eliminate the noise created by air flowing over a smooth feather surface. Owls can thus descend on their prey without a sound. They can locate small prey with remarkable accuracy, even in dim light or complete darkness. Experiments conducted in totally dark, soundproof rooms have shown that owls can capture prey after pinpointing its location to within 1.5 degrees in both horizontal and vertical planes. Based on this scenario, which of these structures do owls primarily rely on when they hunt in total darkness?

Which is the correct sequence of structures through which light passes in the eye?

The receptor cells for hearing are located in the

Describe the structure of a taste bud.)

The perception of sound depends on

Which structure transmits sound waves to the malleus in the middle ear?

Why do things appear mainly black or white to us in low light?

You are researching the adaptations of a newly discovered mammal that is active mostly at night. Which adaptation to the eye would you expect to find?

Odor molecules diffuse through mucus and bind directly to the_________ of olfactory receptors.

There are three small bones in the inner ear.

What are the two main functions of the choroid layer, located behind the retina in humans?

How does the ear distinguish between loud and soft sounds?

Why does food taste bland when you have a cold?

The hair-like projections of the hair cells are inserted into the