Invertabrate Biology Flashcards by Jacki Leigh

What are the Classes located in Phylum Mollusca?

Class->
Bivalva
Gastropoda
Cephalopda
Polyplacophora

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What animals are located in Class Bivalva?

Clams, oysters, Scallops, and Mussels

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What does moluska mean?

Soft body

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What are the 3 parts of a mollusk body?

Visceral mass
Mantle
Foot

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What is most of a mollusk shell made of?

Calcium carbonate

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How are the two types of the shell opened and closed in mollusks?

By adductor muscles

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What part of the mollusk body is used for burrowing?

the foot

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How is water circulated through mollusks?

by siphons

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How do mussels attach themselves to intertidal structures?

by strong byssal threads

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What are Geoducks?

Giant Clams

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What do scallops posses that other shellfish do not?

Eyes with a lens and retina

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What is the Periostracum layer on an oyster shell?

Outer protien layer

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What is the Prismatic layer on an oyster shell?

Middle calcium carbonate CaCO3

-and the thickest layer

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What is the nacreous layer on an oyster shell?

The ‘mother of pearl’ layer

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Where do pearls form in an oyster?

Between nacreous layer and mantle

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What is the umbo?

The oldest part of the shell->The ‘hinge’

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What animals are in class Gastropoda?

Snails and Slugs

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Which has a shell?

Snails or slugs?

Snails have a shell, slugs do not

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What do snails and slugs have for grazing on grass?

A radula

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Do aquatic snails have seperate sexes?

yes

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Do terrestrial snails have seperate sexes?

no, they are hermaphrodidic

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When do snails retreat into their shell?

during dry periods

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What is the unfortunate consequence of snails undergoing torsion during larvae development?

The anus ends up above the head

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What modified radula does the cone snail possess?

A harpoon with a poisonious gland

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What modified radula does the Moon snail possess?

Can drill holes into clam shells

What is a nudibranch?

A sea slug that doesnt have a shell

In sexual reproductio, where are sperm and eggs deposited?

Via cloaca conjugation

What animals belong in Class Cephalopoda?

Squid, Octopus, and Nautilus

What type of nervous system do cephalopods possess?

A highly developed nervous system with vertabrae like eyes

What is the largest invertabrates?

Giant squid

How do giant squids move?

By jet propulsion

What special camouflage does the giant squid have?

Chromatophores in the skin help change skin colors

What is the internal shell in giant squid called?

pen

How does the the octopus look for prey?

by crawling across the bottom

What animals are in Class Polyplacophora?

Chitons

What makes up Phylum Annelida?

The segmented worms

What type of worms are segmented?

Earthworms and Leeches

What type of digestive system do segmented worms have?

One way digestive system with a mouth and anus

What are the classes located in Phylum Annelida? | What animals are in each class?

Class Polychaeta: Marine worms Class Oligochaeta: Earth Worms Class Hirudinea: Leeches

Marine worms are ____________ _________ __________ and featherduster worms.

Marine worms are preditory clam worms.

What are the internal partitions called in earthworms?

Septa

What are Seta?

External bristles w/turn into parapoda

What type of circulatory system do earthworms have?

A closed circulatory system with 5 pairs of aortic arches or hearts

What digs through the soil as earthworm feeds on organic matter?

Prostomium

What is the earthworm equivalent of a stomach?

gizzard

Are earthworms hermaphroditic?

Yes

How do leeches move?

With two suckers used for locamotion

What invertabrates are located in Subphylum Chelicerata?

Scorpions, Spiders, Ticks, and mites

Chelicera have?

Fangs and Sucking mouth

How do you identify a brown recluse?

Has a fiddle on cephlothorax | can be found in old clothes and garage storage areas

Who can a black widow kill?

Infants, Pets, and Older people

Where does the wolf spider carry it's babies?

on its back

In addition to Lyme Diease, what other diease can ticks carry?

Rocky Mt. Spotted fever

What type of organism is a scorpion?

Transitional organism

What was the 1st Arthropod to live on land?

Scorpion

What type of Chelicerates are microscopic?

Mites

What do chiggers salivary secretions do?

Causes tissue to harden into a strawlike tube called a stylosome

What is a Chelicerate that is used to detect lipopolysaccride layer on bacteria?

Horseshoe crab

What makes up Subphylum Crustacea?

Shrimp, Barnacles, Crayfish, Lobsters and Crabs

What kind of mouth do invertabrates in Subphylum Crustacea have?

A chewing mouth with mandibles and a maxilla

What are the cephlothorax of crustaceans covered in?

By a carpace

What animals are in the Order Decapoda?

Crabs, Shrimp, Lobsters, and crayfish

What are the characteristics of Decapoda?

10 legs, 2 body regions, gills, carapace

What is a immature female crab called?

A she crab or salle

What is a mature female crab called?

Sook

What are the differences between male and female crabs?

Female-Painted red claws, wide underbelly | Male-Painted blue claws, Narrow underbelly

What is special about crayfishes mouth?

Mandibles for crushing 2 pairs of maxilla-> 1 for food 2 is for pushing water over gills

Are barnacles hermaphroditic?

Yes

What invertabrates make up Phylum Arthropoda?

Centipedes, Millipedes

What are Predacious w/posionous bite, carniverous and fast moving arthropods?

Centipedes

What are arthropods that are herbivores, slow moving and roll into a ball when threatened?

Milipedes

What is the study of insects?

Entomology

What are the three body regions of animals of class insecta?

Head, thorax and abdomen

What are the Sensory Receptors in insects?

Sensory setae like structures Typanum-Hearing Pheromoes-Communications

What are the 5 Major orders in Class insecta?

``` Coleoptera (Beetles) Lepidoptera (Moth and butterflys) Termites Diptera (Flies and Mosquitos) Orthopoda (Cockroaches and Roaches) ```

What do Japanese beetles do?

Damages Lawns

What does the Titan Beetle have?

A very painful bite

What does the Dung Beetle eat?

Feces

What is the difference between butterflies and moths?

Butterflies feed during the day, hold wings vertically, have fleshy catapillar Moths feed at night, hold wings horizontally, have a hairy catipillar, and fuzzy atenae

What lives inside a termite?

Protists that digest the wood

What does the Green bottle fly eat?

Dog feces, rotten trash

What kind of mouth does the housefly have?

Spongelike mouth parts

What do mosquitos sense?

CO2, Sweat, and warmth

Invertabrate Biology Flashcards

(83 cards)