7 Science Chapter 9 Word Scramble
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Term | Definition |
fish | aquatic vertebrates possessing gills, fins & scales |
scale | bony overlapping plates that protrude from the fish's skin |
myomere | W-shaped bands of muscle |
gill | An organ that removes oxygen from water. |
gill filament | a double row of thin projections that filters water in each gil |
gill slit | paired openings in the throat behind the mouth |
operculum | gill cover |
lateral line | a system of nerve endings that extend over a fish's head & sides |
roe | fish eggs |
milt | fluid a male fish releases over the roe; it contains sperm |
fry | young fish |
livebearer | fish that give birth to live young |
photophore | organs that produce light |
reptile | cold-blooded animals with lungs, scaly skin, and that are born of amniotic eggs. |
aminion | membrane that contains a developing embryo and its surrounding fluid |
chromatophore | Cells containing pigment that, through contraction and expansion, produce temporary color changes. |
regenerate | grows back |
spectacle | immovable transparent eye covering |
dewlap | Ornamental crests, frills, and throat fans of iguanids |
molt | To shed an old outer covering so that it can be replaced with a new one |
Jacobson's organ | sensing organ located in the mouth of a snake that is used for smelling |
venom | poisonous liquid containing enzymes & chemicals that destroy portions of a body |
fang | long hollow or grooved teeth of a snake |
antivenin | medicine designed to counteract snake venon |
pit organ | a depression on the side of a pit viper's head between the eyed and nostrils that can detect temperature changes |
plastron | The lower shell of a turtle |
carapace | hard outer covering or case of certain organisms such as turtles |
scute | plates made of keratin that cover the turtle's shell |
tortoise | turtles that live only on land & have elephantlike feet |
amphibian | cold-blooded four-legged vertebrates that are most terrestrial but live near water & spend an important part of their life cycle in it |
metamorphosis | A process in which an animal's body undergoes dramatic changes in form during its life cycle. |
cold-blooded | regulating body temperature by external means |
ichthyologists | scientists who study fish |
ray-finned fish | fish with fins made of webs of skin supported by rays or spines |
lobe-finned fish | fish with webbed rays attached to the body by a lobe |
pectoral fins | fins located on the sides of the fish behind its gills |
pelvic fins | fins located below the pectoral fins on the fish's underside |
dorsal fin | prominent fin on the top of a fish; used to stabilize the fish while swimming |
anal fin | fin behind the pelvic; used to stabilize the fish while swimming |
caudal fin | fin that sticks out from the fish's tail & is used as a propeller |
spawning | laying large quantities of eggs in the water |
gas glands | introduce a heavy gas(carbon dioxide) into the bladder to pressurize it so it does not collapse allows the fish to float at its new depth |
electric organs | organs that allow the fish to generate electricity |
denticles | The body covering found on sharks, made up of tiny tooth-like structures that give it a sandpaper-like texture. |
spiracles | A pair of large openings caudal to the eyes. One entry for water to move to gills |
eye shine | phenomenon in sharks caused by reflective plates in their eyes that helps them see better |
bioluminescent | capable of glowing |
labyrinth organ | treelike cavity in the center of the gill chamber of some air-breathing fish |
swim bladder | large, gas-filled organ tha allows a fish to stay suspended in any depth of water |
electrocyte | a current-generating cell from an electric organ |
neutrally buoyant | neither rising nor sinking but remaining at the current depth |
cyclostomata | class for cartilaginous fish without jaws |
mermaid's purse | protective case in which some sharks & skates lay their eggs |
torpedo | electric ray |
whale shark | largest known fish |
chimaeras | group containing ratfish, spookfish & elephant fish |
rostrum | a sawfish's nose |
skates | long-nosed oviparous batoids |
pups | baby shark |
batoids | cartilaginous fish with flattened bodies |
hemotoxic | venom that affects the circulatory system by causing the red blood cells to burst |
lateral undulation | the snake bends into a series of curves as it keeps its body flat on the ground |
rectilinear movement | the snake alternately stretches and shortens segments of its body in order to creep forward in a straight line |
concertina movement | the snake moves like an accordion |
sidewinding movement | The process in which a snake supports its body with its head, tail, and two or three other points of contact, it lifts the remainder of its body off the ground and moves it sideways. |
brood | to sit upon (eggs) to hatch |
Created by:
Mrs_CC
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