science f3

1.4 IMPORTANCE OF RESPONSES TO STIMULI IN ANIMALS

STEREOSCOPIC VISION

• Both eyes at the of the head.

• A narrow field of vision.

• Judgement of distance is accurate.

• Visual fields of the eyes overlap a great deal. Images in the overlapped area are seen in three dimensions.

• Most predators have this type of vision.

• (cat, lion, owl, eagle)

MONOCULAR VISION

• Each eye at each side of the head

• It has wider field of vision.

• A wide field of vision helps animals to detect their enemies coming from any direction.

• Visual fields of the eyes do not overlap or overlap only a little. Most images are in two dimensions.

• Most preys have this type of vision.

• (bird, rabbit, chicken, rat)

STREOSCOPIC HEARING

• The ability of animals to hear with two ears.

• To determine the direction of the sound accurately.

• Each organism has a different frequency of hearing.

SENSORY ORGANS ENSURE THE SURVIVAL OF ANIMALS ON EARTH

SENSORY ORGANS

• Fish - the literal line on the body can detect the water flow.

• Cats - whiskers can feel the changes in airflow around them.

• Viper - has organ called Jacobson to detect heat and is sensitive to smell.

Multiple Choice

Has a wider field of vision

Multiple Choice

Has a overlapping vision

Multiple Choice

Can estimate distance more accurately

Multiple Choice

Enables animals to escape from predators

• Stereoscopic vision

• Monocular vision

Multiple Choice

What is the type of vision of a primary consumer

• Stereoscopic vision

• Monocular vision