1057 Science (1)
As many as (36, 66, 80) different varieties of dinosaurs have been discovered in one dinosaur graveyard.
36
The head of the Triceratops had three _______, or horns.
Spikes
Some dinosaurs were the size of (ants, fleas, ducks), and others weighed over 100,000 pounds, or 46,000 kilograms.
Ducks
The _________ of the eye causes the pupil to expand or contract.
iris
The thalamus helps keep the _______ awake.
mind
The Edmontosaurus lived on land and was a (plant-eater, meat-eater).
Plant-eater
Some fossils are preserved (impressions, sediment, resin) left by plants or animals that once existed.
Impressions
The _______ changes size to regulate the amount of light penetrating the interior of the eye.
pupil
The cornea and lens _________, or bend, the light that enters the eye.
refract
The hypothalamus regulates body (movement, temperature, functions), hunger, and thirst.
temperature
The (hind, front) legs of the Stegosaurus were twice as long as its (hind, front) legs.
Hind . . . front
The physical remains of plants or animals may be (preserved, cooked, labeled) in ice, snow, or amber.
Preserved
The front legs of the Brachiosaurus were longer than its hind legs, and its (teeth, nostrils, spikes) were on top of its head.
Color messages travel through the _________ nerve to the brain.
optic
(Axons, Pons, Ax) of the spine carry messages between the brain and other parts of the body.
Axons
The Stegosaurus had two rows of plates running down its ________.
Back
(Sediment, Fossilization, Petrified) describes what happens when things are buried quickly without having time to decay.
Fossilization
The (medulla, cornea, eardrum) is a membrane stretched over the auditory canal.
eardrum
The inner ear provides (pressure, balance, vibration) for the body.
balance
The________ oblongata regulates breathing and many of the involuntary functions of the body.
medulla
The (Brachiosaurus, Diplodocus, Triceratops) dinosaur had a long neck, which would have been as high as a four-story building.
Brachiosaurus
(Petrified, Leached) fossils are heavy, whereas (petrified, leached) fossilsare very light.
Petrified . . . leached
The organ in the inner ear responsible for receiving sound is the (cochlea, cornea, pupil).
cochlea
The (temporal, temporary, occipital) lobe involves hearing and smelling.
temporal
The (vertebrae, pons, midbrain) controls body movement, eyesight, and hearing.
midbrain