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Class Petromyzontidae Classwork

Across
Migrate from marine to ____
Their main predator
Can't live in high (extreme) temperatures
They die after this
The class_____ can be identified by their jawless, eel-shaped bodies
Adults feed off fish ___
Lampreys have one single ___ on the top of their head
___ disc mouth
14 Years
Eaten in this region
Lays eggs in this type of nests
Down
Offspring _____ for 3-6 years until they're adults
Usually found ___ to fish
Number of gill openings
Reaches up to 5 inches long
Larvae feed on this type of life
Reaches up to 12 inches long
Filter water
Found on this side of the food chain
Lampreys latch onto objects with their ___ opening
dorsal and caudal fins
Make these types of pits with their mouths
Have relatively large eyes and their cornea is continuous with their skin, they lack muscles of accommodation, and have most structures of the vertebrate eye like lens, 3-layer retina, wiring to the brain, and color vision.