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Marine Mammal Sensory Systems Quiz

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Questions and Answers

What is the function of the sensory systems mentioned in the text?

To sense the environment and other animals’ behaviour in order to make appropriate decisions (correct)

To control voluntary muscle movements

To produce hormones for growth and development

To regulate body temperature and metabolism

What is the main purpose of vision for river dolphins according to the text?

Long-distance navigation

Detecting changes in water temperature

Identifying different species of fish

Close range activities like hunting and social interactions (correct)

What is the role of the pad under the eye of dolphins and pinnipeds?

Secrete oil to protect from saltwater (correct)

Aid in buoyancy control

Regulate body temperature

Enhance echolocation abilities

Why do river dolphins have small eyes according to the text?

Visibility may be limited and eyes are used for close range activities Signup and view all the answers

What type of cells in the retina are responsible for low-light and black-and-white vision?

Rods Signup and view all the answers

Which marine mammals have lost their S-cones and rely on rods for vision?

Cetaceans and pinnipeds Signup and view all the answers

Which mammals are dichromats with L-cones for red to green and S-cones for blue to UV?

Most terrestrial mammals Signup and view all the answers

Which adaptation allows some mammals to see better in low-light conditions?

Reflective layer behind the retina (tapetum lucidum) Signup and view all the answers

Which sensory adaptation is used for close range interactions in marine mammals?

Vibrissae Signup and view all the answers

Which mammals are monochromats with no S-cones?

Some nocturnal mammals Signup and view all the answers

Which type of mammals have a reflective layer behind the retina for low-light adaptation?

Marine mammals Signup and view all the answers

Which adaptation allows some marine mammals to maintain hearing underwater?

Conduction of sound through lower jaw Signup and view all the answers