First vertebrate group to spend entire life cycle on land
Limbs of vertebrates are attached to the ___ (Which body region?)
Animal that has hair or fur on their bodies
The anterior end of the nerve cord develops into the ___
Most sharks are ___. (They seek out their prey.)
A group of mammals where the young complete development internally
Young amphibians breathe through ___
Animals whose body temperature depends on the surrounding air or water temperature
The scales of bony fish are covered with a layer of
The outer covering of an organism is its ___ system.
The bodies of sea squirts are enclosed within a ___
Sharks are ___ fish
___ belong to the Class Aves
Mammals feed their young using ___ glands.
The smallest bird
The forelimbs of birds are modified into ___
Internal skeleton of chordates
The largest bird
The lamprey is an example of a ___ fish.
An organism that begins its life in the water and then develops organs that allow it to live on land
The notochord of chordates is composed of ___
Mammal whose young develop in a pouch
Verticales
___ are sessile, marine animals that are chordates but not vertebrates
The most abundant reptile
A terrestrial turtle
In ___, the notochord is replaced by the vertebral column.
Only flying mammal
Sense organ on the side of a fish's body used to detect vibrations
Reptiles breathe with ___
Animals whose bodies maintain their own temperature are ___
All chordates have a stiff rod of cartilage called ___ on their dorsal sides at some time during their lives
Another name for vertebral column
Another name for skull
A series of changes undergone by an organism as it reaches its final form.
The spinal ___ is surrounded by the vertebral column in vertebrates.
Amphibians and fish exhibit ___ fertilization
A mammal that lays eggs
Class of jawless fish
The integumentary system of fish
Birds have ___ attached to their lungs to store extra oxygen for flying.
Frogs breathe through their ___ and lungs
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There is a 'Make Printable' button on the top left of your puzzle that will let you sign up for a plan or purchase a single puzzle.
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It looks weird when printed.
First make sure you’ve published your puzzle. See the 'How do I print?' section above for more information.
99% of other printing issues have to do with printer settings. Instead of trying to fiddle with printer settings, which can be time-consuming and frustrating, there are a couple workarounds you can try.
You can try printing from a different browser, since different browsers have different default print settings. Alternately, you can try saving as a PDF (next to the print icon) and print that.
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When you hit the 'Arrange' button, our algorithm will try to arrange all your words on the grid, and will move words around to try to fit the most words.
This will get all the words on the grid about 90% of the time, depending on the word list. For the other 10%, you will get an alert explaining that the words that did not fit were added to the scratchpad.
It prints on two pages.
Big puzzles won’t always print on one page — the clues and grid are the smallest we could make them while keeping them readable for everyone.
That said, different browsers print in slightly different ways, so you could try using 'print preview' using a different browser (or try the PDF button) to see if you like how that looks better.
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