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Transcript
VOCAB ONLY
Arthropods
exoskeleton
Skeleton on the outside of the body ____________________
open
Circulatory system in which _____________________
Circulatory fluid is NOT contained in vessels
Big pincher claw on a crayfish
cheliped
__________________
Ability to drop off a body part to
autotomy
escape a predator
_______________________
regeneration
Ability to regrow a lost body part ____________________
Smaller feelers that sense touch,
antennules
taste, and equilibrium
____________________
Part of the exoskeleton in a crayfish
carapace
that covers the cephalothorax __________________
Type of larva with 3 pairs of
nauplius
appendages and one eye_________________________
An eye composed of many
____________________
Compound eye
light detectors each with it own lens
One of 10 bilaterally paired
appendages on the abdomen
of a crayfish that create water
currents, transfer sperm (males)
swimmerets
& carry young (females) ____________________
A heart shaped movable mouth
part that functions in chewing
mandible
in a crayfish
________________________
Blood in an animal with
hemolymph
open circulation ______________________________
Thoracic appendage in
arthropods used to touch,
maxilliped
taste, and manipulate food __________________
Larger segment made by
tagma
fusing smaller sections together _____________
Structure through which spinnerets
spiders release silk ________________________
Center section of a
crayfish’s tail __________
telson
Side sections of a
crayfish’s tail ____________________
uropods
Carbohydrate found in the
exoskeleton of arthropods
chitin
that makes it flexible ____________________
Process of periodically
shedding the exoskeleton to
molting
allow growth ________________________
Main excretory organ in
most insects and some
tubules
myriapods and arachnids Malpighian
_______________
An organ for gas exchange in
the abdomen of arachnids
with parallel folds that resemble
a book
________________________
Book lungs
Free swimming larva seen in
Crustaceans with 3 pairs of
Nauplius
appendages and one eye ___________________
Joining of egg and sperm
outside the body ____________________
External fertilization
Organ for osmoregulation
and excretion of nitrogen
waste in crayfish ____________________
Green glands
Body system that uses
hormones to control
Endocrine
other body systems ___________________
Maintaining the balance
of water and ions in the body osmoregulation
________________
Concentration of nervous
and sensory tissue in the
cephalization
anterior end of an animal__________________
Ability to self-amputate
autotomy
body parts ________________________
regeneration
Ability to regrow lost body parts _______________
Respiratory organ that
exchanges gases with water__________________
gills
Reproductive organ that
makes sperm ____________________
testes
General term for
gonads
reproductive organs ___________________
Nerve center found in the
head ______________________________
Cerebral ganglia
Small tubules that carry
Vas deferens
sperm to the exit __________________
Reproductive organ that
ovary
makes eggs ____________________
Part of the exoskeleton
carapace
that covers the cephalothorax________
A pincer-like mouthpart in
chelicera
some arthropods like arachnids ____________
System of tubes in spiders that ___________________
tracheae
carry air directly to the tissues through
openings in the exoskeleton
Appendages that manipulate
food and draw water
___________________
maxilla
currents over the gills in a crayfish
Openings in the exoskeleton
that let air into the trachea
spiracles
_____________________
arteries
Blood vessels that carry blood ________________________
away from the heart
Stomach closest to the mouth ______________________
cardiac
Teeth in the stomach of a
__________________
Gastric mill
crayfish that help grind food
Organism with “jointed legs”
and an exoskeleton
Arthropod
________________________
vertebrate
Organism with a backbone ____________________
Organism whose blastopore protostome
becomes its mouth
____________________
Body cavity formed within the
mesoderm that surrounds
coelom
the internal organs
______________________
Outside body covering in an animal ________________
integument
Joining of an egg & sperm inside
the female’s body
____________________
Internal fertilization
Kind of development in which
development
offspring hatch as larva and must Indirect
____________________
undergo metamorphosis to become
adults
Term used to describe a
“in berry”
female crayfish carrying ____________________
eggs or larvae
ostia
Holes in the crayfish’s heart __________________
that allow the return of blood
PRACTICE VOCAB:
invertebrate
Organism without a backbone ____________________
Organism whose blastopore
deuterostome
becomes its anus
____________________
Parts that extend from the
appendages
surface of the body like arms, legs, __________________
antenna, maxillipeds
Large “feelers” on the head of a
antenna
crayfish that sense touch and taste __________________
veins
Blood vessels that carry blood back ________________________
to the heart
In animals the body plan where the
left and right sides are mirror images Bilateral
symmetry
of each other
____________________
Body section made by fusion of the
cephalothorax
head and thorax
__________________
Organisms with 10 legs
decapods
__________________
uropods
Side sections of a crayfish’s tail ____________________
that help in “tailflips”
Term used to describe a
female crayfish carrying
eggs or larvae
“In berry”
____________________
carapace
Section of exoskeleton that __________________
covers the cephalothorax
in a crayfish
Open circulation
Type of circulation in which __________________
hemolymph is NOT contained in
blood vessels and flows loose inside the body spaces