Turtles, Snakes, Chameleons, Crocodiles, Frogs, Toads, Salamanders

How are the extraocular muscles of most reptiles described?

• Highly developed

• Poorly developed

• Similar to birds

• Identical to mammals

Tags

NGSS.MS-LS4-2

What is the exception among reptiles regarding the movement of their eyes?

• Snakes; eyes move in unison

• Crocodiles; eyes do not move

• Chameleons; eyes move freely and independently of one another

• Turtles; eyes can rotate completely

Which glands are present in most reptiles and amphibians to help produce the tear film?

• Lacrimal and meibomian glands

• Lacrimal and harderian glands

• Meibomian and harderian glands

• Salivary and meibomian glands

What is unique about the eyes of caecilians( blind ones)?

• They have multiple eyelids

• Their eyes are covered with skin

• They have exceptionally large eyes

• Their eyes can see in complete darkness

What might be a consequence for an amphibian if it is missing an eye?

• Inability to breathe properly

• Loss of balance

• Dysphagia

• Inability to reproduce

What do crocodilians have that enhances their night vision by reflecting light within the eye?

• Parietal eye

• Tapetum lucidum

• Musculature

• Iris

Which of the following is NOT a characteristic of the parietal eye?

• It has a basic, undeveloped retina and cornea

• It has no iris, lids, or musculature

• It plays a role in light-cycle-mediated hormone function

• It produces clear, focused images

What type of special organ do some snakes have that allows them to detect infrared radiation?

• Auditory organs

• Olfactory organs

• Pit organs

• Tactile organs

What is another name for the infrared sensing ability that some snakes have?

• X-ray vision

• Ultraviolet vision

• Heat vision

• Night vision

On what factors does heart rate depend?

• Species, size, and metabolic function

• Color, age, and intelligence

• Diet, sleep, and time of day

• Weather, altitude, and hydration