Final Lab Practical Flashcards
What is attached to the trachea on a crayfish?
spiracles
Where is the location of the crayfish’s uropods?
Posterior Abdomen
What is the function of antennal glands?
Excretion
What is the sharp defensive structure on the cephalothorax of the crayfish?
rostrum
What is the shape of the Crayfish’s compound lenses?
Circular
What are the featherlike structures located under the cephalothorax of the crayfish?
maxilliped
Where do we get Amoebocyte lysate?
From the horseshoe crab
T/F The crayfish carapace covers the cephalothorax
True
Where do we find the crayfish’s brain?
Below and between the eyes
What are the functions of the spiracles on the grasshopper?
respiration
What is the shape of a grasshoppers compound lenses?
circular
What do you find between a grasshoppers crop and stomach?
gastric ceca
How many palps are on the labrum of a grasshopper?
2
Where do you find a female grasshopper’s terminal segment?
ovipositor
How many legs are found on the 5 segments of the millipede?
20
What is the oldest terrestrial arthropod?
Scorpions
What is the functions of the maxillipeds on a centipede?
poison bite
Which of the following is the primary component of chitin?
sugar
T/F Scorpions locate their prey by feeling vibrations in the sand
True
What are the intermediate hosts of the hosts of the ‘blood fluke’?
Snails
What worm is known to infest the human eye?
Loa Loa Worm
What causes the disease elephantiatis?
Filarial worm
What human structures are targeted by Schistosoma fluke?
intestinal veins
How are the ways sponges produce asexually?
Budding, gemmules
What is the genus name of a heartworm?
Dirofilaria
What is the name for an immature jellyfish after the polyp stage?
ephyra
How do you get trichinosis?
from uncooked pork
What is found on the exterior of nemotodes?
a cuticle
What is found between a hydra’s epidermis and gastrodermis?
Mesoglea
Sponges produce spongin fibers with the aid of which of the following cells?
amebocytes
Through which structures do Planaria eat and excrete?
Pharynx
What is an animal that has male and female reproductive organs?
Hemaphroditic
What is the most common parasitic worm of humans in the US?
Pinworms
How do you become infested with liver flukes?
From eating uncooked fish
Where is the location of a clam’s hinge?
Dorsal
What segment are the female gonapores found on an earthworm?
14
What worms have parapoda?
Clam worms
What structure is found on an earthworms 22nd segment?
cliteum
What segment on an earthworm would you find the prostomium?
1
Where is an earthworms nerve cord?
Ventral
What does a earthworm use nephrida for?
excretion
What holds the valve of a clam together?
adductor muscles
How do leeches lay their eggs?
cocoon
How does a clam move food from it’s gills to it’s mouth?
cilia
What structure passes through a clam’s heart?
Intestines
What structure do you find on a snails radulla?
tongue
How would you describe a lancet’s nerve cord?
Dorsal and Hollow
What is used by the sea squirt to filter the water for food?
pharengeal basket
What is the ‘rounded body’ on the top of tube feet?
ampulla
Why are lancets myomeres?
muscles