Spring 23 Final - Turtles, Cetaceans, Fish

Whales have gills, so they do not need to surface to breathe.

• True

• False

Which is not a characteristic of a mammal?

• mammary glands

• gills

• body hair/fur

• mammals have all these things

Which is a difference between cetaceans and sharks?

• cetaceans are mammals

• cetaceans have dorsal fins

• cetaceans all have teeth

• cetaceans are fish

The ________ of a whale has bones similar to the human hand.

• fluke

• pectoral fin

• dorsal fin

• rostrum

The scales behind the sea turtle's eye are called the...

• postfrontal scales

• postorbital scales

• prenasal scales

• prefrontal scales

_________ is a thick layer of fat that serves cetaceans as insulation against the cold.

• baleen

• melon

• echolocation

• blubber

The ________ is a special oil-filled sac that serves as an acoustical lens for odontocetes, allowing them to focus sounds.

• rostrum

• baleen

• melon

• blubber

What kind of whale is this?

• Baleen, because it has a long tail

• Toothed, because it has a short rostrum

• Baleen, because it has a high, arched rostrum

• Toothed, because it has a spine

The supracaudal scutes are the segments of shell...

• above the sea turtle's tail

• under a sea turtle's belly

• behind a sea turtle's legs

• on the outside of a sea turtle's shell

The moustache-like material that hangs from the mouths of some whales, helping them to filter feed is called ...

• moustache

• bristles

• baleen

• teeth