Term
|
Definition
| Retention of larval characteristics, such as external gills |
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Term
|
Definition
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Term
|
Definition
| no hole behind eye (turtles) |
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Term
|
Definition
| one hole behind eye (mammals) |
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Term
|
Definition
| two holes behind head - birds & other reptiles |
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Term
|
Definition
| all amphibians and some reptiles can use both water & air for respiratory exchange |
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|
Term
| Positive pressure ventilation |
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Definition
| air is forced into the lungs by raising the pressure in the buccal area to be greater than the lungs. |
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|
Term
| Negative pressure ventilation |
|
Definition
| lower pressure in lungs to suck air in |
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Term
|
Definition
| highly vascularized region in frog for water exchange |
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Term
|
Definition
| produce noxious or toxic stuff in amphibians |
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Term
|
Definition
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Term
|
Definition
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Term
|
Definition
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Term
|
Definition
A sac in the roof of the mouth which has
specialized sensory cells for detecting
volatile and non-volitile molecules in the air |
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Term
|
Definition
| presses on the ground and takes up the fluid (plethodontids) |
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Term
|
Definition
| reflects back light for night vision |
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Term
|
Definition
| detect body heat of prey (pit vipers) |
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Term
|
Definition
lateral undulation , whenever a bend
contacts a surface object, it exerts force against it
and deforms locally around it; undulations in
different directions cancel one another to propel
snake forward |
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|
Term
|
Definition
movement in a straight line;
used mainly by large snakes; the belly
scales are alternately lifted slightly from
the ground and pulled forward, and
then pulled downward and backward.
A slower form of movement |
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Term
|
Definition
involves alternately pulling up the
body into bends and then straightening out
the body forward from the bends; usually, the
snake anchors the bends against an object
and pushes against it. |
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Term
|
Definition
used primarily by snakes that live in
deserts; only a two or three points of the body
are resting on the ground at once and the
body is raised in loops between these points;
the loops are moved and set down, then the
rest of the snake is moved |
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|
Term
|
Definition
breeding takes place over only a
few days to weeks |
|
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Term
|
Definition
| breeding can occur over months |
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Term
|
Definition
surrounds embryo,
provides fluid filled chamber
for development |
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|
Term
|
Definition
protective
membrane around entire
egg |
|
|
Term
|
Definition
stores nitrogenous
waste produced during
development, aids
respiration through Chorion |
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Term
|
Definition
provides nutrition
to embryo |
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Term
|
Definition
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Term
|
Definition
move
the
body
towards
prey
quickly
and bites down on prey |
|
|
Term
|
Definition
prey
is
captured
using
a
sticky
tongue
shot
quickly
out
of
the
mouth |
|
|
Term
|
Definition
Prey held by jaw & Jaws
open
for
a
split
second
while
the
head
jumps
forward |
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|
Term
|
Definition
|
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Term
|
Definition
| front-fanged, fixed fangs, deliver neurotoxic venom |
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Term
|
Definition
| front-fanged, retractable, fragile, allows snake to "walk" along prey |
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